Penofol laying on a wooden floor. How to properly insulate a wooden floor with penofol

It should be noted that penofol insulation of private houses and apartments is becoming more and more popular for various reasons. There is also a lot of talk around this relatively new insulation, including about its unique properties and ease of use. To understand what it is - penofol, as well as to find out the whole truth about its characteristics - this is the purpose of this article. In addition, we will tell you how to use this material to better insulate walls and other structures from the inside of the house.

What is Penofol

The material belongs to a new generation of ultra-thin polymer insulation made using foaming technology. In this case, we are dealing with expanded polyethylene welded to a layer of reflective aluminum foil.

Thanks to the manufacturing technology, small pores inside the foam foam have a closed structure, which makes the insulation practically impervious to water vapor. According to the manufacturers' assurances, the foil layer is designed to reflect infrared heat streams coming from inside the premises.

There are 3 main types of penofol:

with one layer of heat-reflecting foil (type A);
the foil is welded to the insulation on both sides (type B);
on one side of the material there is foil, on the other - an adhesive layer (type C).

Note. One of the latest innovations is one-sided (type A) perforated penofol. Many tiny holes are made in the insulation to make it vapor-permeable.

The scope of application of penofol is thermal insulation from the inside of houses and apartments, including balconies and loggias, as well as any industrial premises. Insulation is offered in thicknesses of 3, 4, 5, 8 and 10 mm. In order to finally understand all the properties of the material, we suggest that you familiarize yourself with its technical characteristics presented in the table:

How to insulate with penofol

It should be noted that it is really quite simple to insulate anything with penofol (wall, ceiling or roof). If you follow the manufacturer's instructions, to achieve maximum efficiency, an air gap of 1.5 to 2 cm must be provided on both sides.

That is, first you need to take strips with a thickness of 20 mm and attach them to the wall vertically or horizontally with an interval equal to the width of the foam foam roll. If the house is wooden, then the planks are attached with self-tapping screws; for brick or concrete bases, dowels will be required. Then strips of the required length are cut from the roll and are aimed at the slats with staples from a construction stapler.

Important. Unlike various thin films, the installation of penofol canvases is not made with an overlap, but end-to-end. In this case, the foil side must face the interior of the room, and the joints must be carefully glued with aluminum tape.

When a layer of foam foam insulation is fixed and glued with tape, the same strips are installed on top of it with their own hands to ensure the outer air gap. They are fastened with self-tapping screws to the previous crate, and outside they are revetted with plasterboard sheets or other finishing methods are used. Please note that the vapor barrier film is not laid, since there is no need for it, penofol itself is a vapor barrier.

It should be said that in practice, few people follow the instructions, usually penofol is attached directly to the wall or ceiling, and the air gap is made only on one side. This reduces the thermal insulation properties of the material, and we will explain why below. With thermal insulation of the roof or inclined walls of the attic, the installation of penofol is carried out by attaching it to the lower planes of the rafter boards. This means that the space between the rafters is filled with another insulation, since one thin polyethylene will not be enough.

Important. If penofol is capable of replacing a vapor barrier, then waterproofing is by no means. You can not lay it in the under-roof space in front of mineral wool, a diffusion membrane is needed there. It does not allow water to pass through, but also does not interfere with the passage of vapors coming out of the cotton wool.

Also, the floors in wooden houses are insulated with foamed polyethylene, laying it between the logs. Again, first, waterproofing is laid, then a slab insulation, and on top - penofol. Putting it under the very bottom or in the screed is pointless, from compression the material ceases to be heat-insulating. Although in practice, such errors can often be found.

Another area of application of penofol is the insulation of balconies and loggias, where the material is laid in a second layer after more serious insulation - extruded polystyrene foam or polystyrene foam. The installation method is still the same: first, lathing bars are placed, polystyrene plates are laid between them, and foam polyethylene is attached on top. After that, interior decoration is carried out.

Note. Perforated penofol is used as insulation for the walls of a wooden house in cases where it is necessary to ensure the vapor permeability of the structure.

Benefits of penofol - debunking myths

Manufacturers and sellers of penofol attribute wonderful thermal insulation characteristics to this insulation, which is actually a myth.

Wiring diagrams with air gaps, one of which we described at the beginning of the previous section, can also be considered as misleading the buyer. How the manufacturer proposes to insulate floors and roofs is shown in the figures:

In fact, the presented schemes are nothing more than another way to improve the thermal insulation of external fences with the help of air gaps, since the intrinsic resistance to heat transfer to penofol is categorically not enough.

This can be easily verified using the best thermal conductivity from the technical data sheet, 0.037 W / m2 ° C. Then we take the canonical formula and determine the thermal resistance of a material with a thickness of 4 mm:

R = δ / λ, where:

δ - thickness of penofol in meters, taken 0.004 m;

λ is the coefficient of its thermal conductivity, equal to 0.037 W / m2 ° C.

We get R = 0.004 / 0.037 = 0.11 m2 ° C / W. Now we look at the comparison table, which is presented on the same resource as the technical data. It says that 4 mm of foam foam can easily replace 77 mm mineral wool or 46 mm expanded polystyrene.

So, for comparison, it is necessary to determine the thermal resistance of a layer of mineral wool 77 mm (its thermal conductivity is 0.05 W / m2 ° C):

Rminvats = 0.077 / 0.05 = 1.54 m2 ° C / W, which is 10 times more than foamed polyethylene.

Hence the conclusion: the presented comparative table is a pure fake. The data given in it are unreliable, and although the material is a good insulation, it is not better than others. The reason is that it is too thin, although in terms of thermal conductivity it is equal to extruded polystyrene foam.

Against this background, all other benefits of penofol pale. True, there is another myth - about reflection infrared heat back inside the room thanks to the foil surface. But none of the manufacturers explain what the foil will reflect behind the interior trim. After all, infrared radiation spreads through an open space, it will not pass through drywall or other obstacle.

What is really good about penofol is its low cost and ability to act as a vapor barrier along with other insulation, as evidenced by reviews on the forums. In addition, it is easy to install, and the process is not time-consuming. You can also note the durability of the insulation, reaching 50 years, provided that it is located inside the building, and not outside. By the way, it is better not to use penofol for external wall insulation, there it will be of little use. You should not take it for thermal insulation of a bath, like any polymer, when heated to 100 ° C, the material will release harmful substances.

Conclusion

If you use penofol wisely and include insulation in the "pie" together with other materials, you can get an excellent result. As a rule, the thickness of the insulation is calculated to a minimum, and an additional layer of a thin and effective insulator will give the necessary margin of safety, which may not be enough in case of a strong cold snap. The foil perfectly reflects moisture, keeping the whole "cake" dry and ensuring a long service life.

No matter what material the house is built from, you can create comfortable living conditions only if you carry out thermal insulation work. Only in this way the house will be warm and comfortable. If you decide to take on the floor insulation from below, then today it will not be difficult to do this, if you choose the right thermal insulation material, and also perform all the work strictly according to plan.

Insulation work is carried out as follows:

A frame is formed to provide a ventilation gap. For this, slats or a metal profile with a thickness of 20 mm are used.
Penofol with a foil layer is laid on the frame and fixed with glue or a construction stapler.
The gaps between the elements of the thermal insulation coating are filled polyurethane foam or silicone sealant... The joints are glued with aluminum tape.
A frame is fixed on top of the insulation, similar to the first - decorative finishing of the room will be installed on it.

Tip: if the penofol is damaged during the installation process, it can be repaired with your own hands, simply by gluing the defects with aluminum tape.

A special case of insulation with penofol is finishing the balcony. It is somewhat more complicated, as it should be more efficient due to the thinner walls. In essence, the technology is the same, only an additional layer of foam or foam must be installed between the wall and the insulation, which is fixed with plastic dowels.

External wall insulation

Insulation with foam foam with a foil layer on the outside is somewhat more difficult to implement. The technology differs in that an additional layer is required to protect it from wind and moisture.

A frame is mounted on a wall cleaned of finishing.
Penofol is fixed on the frame.
A windscreen made of a special two-layer membrane is fixed on top of the insulation.
A second ventilation frame is installed.
The facade is sheathed with decorative material.

Thus, penofol is a very effective insulation that can be used in the most different situations without compromising performance. At the same time, do-it-yourself warming with penofol is carried out without difficulty even by an inexperienced person.

Floor insulation - methods and materials

Floor in wooden house, as a rule, requires additional insulation in the same way as the foundation, ceiling and walls. Otherwise, very noticeable heat losses cannot be avoided - they can account for up to 20 percent of the total heat loss. For this reason, special attention is paid to the thermal insulation of the floor.

V modern construction There are various methods of thermal protection of the floor. Various materials of the new generation are used, which very effectively help to keep the warmth in the room. Among them, a special place is occupied by foil insulation - it consists of a thermal layer with foil glued onto it. Such insulation is effective not only due to low thermal conductivity, but also due to the reflective properties of the foil - it reflects thermal radiation into the room.

There are foil thermal insulators different types, but the most popular among them is penofol is a material made of foil and foamed polyethylene. This insulation has gained an excellent reputation due to its characteristics and ease of work with it - all work on thermal insulation of premises can be done with your own hands, even without having the qualifications of a builder.

Disadvantages and advantages of penofol

As mentioned above, penofol consists of a foil layer and a heat insulator, which is foamed polyethylene. It has the following properties:

High heat-shielding and noise-suppressing properties;
Absolute waterproofness - the foil repels water;
High environmental friendliness - the materials from which it is made are used even in the food industry;
Small layer thickness, which gives serious advantages in terms of preserving the usable area of the room;
Non-flammable - this insulation belongs to hardly flammable materials;
Simple and easy to use;
Inedible for rodents - a very relevant property when it comes to floor insulation;

There are penofol of the following types:

Type A - foil on one side, foamed polyethylene on the other;
Type B - the foil layer is located on both sides of the polyethylene;
Type C - self-adhesive. On one side there is a foil layer, on the other - an adhesive layer, with which the insulation is attached to the insulated surface;
Type ALP - foil laminated with polyethylene coating.

The convenience of penofol is that it does not require special hydro and vapor barrier. But when performing floors in the house, it is necessary to provide an air gap - in order for the heat-reflecting properties of the foil to work and so that moisture that can settle on a moisture-repellent surface has the ability to evaporate.

Sometimes this insulation is used as an additional layer along with other types of heat insulators to protect against moisture and reflect heat into the room. It is very popular when it comes to insulating baths - in this case, the reflection of thermal radiation inside the steam room helps to maintain a stable high temperature.

Do-it-yourself floor insulation technology in a wooden house with penofol

The insulation process itself is quite simple. Penofol is very easy to use and does not require special construction qualifications. The step-by-step process is as follows:

Preparing the basis for insulation - pouring a concrete screed with the addition of expanded clay;
We wait until the concrete is completely dry, after which we spread the penofol. The insulation is laid with the foil side inside the room - in this way the heat will be reflected inside the house. All joints are carefully glued with special adhesive aluminum tape. The insulation should overlap the walls with an overlap of 10 - 15 cm;
We put wooden logs, checking that they lie in the same horizontal plane;
We carry out the installation of a wooden floor on the logs, carefully making sure that the insulation and the floor have a layer of air between them. Boards must be impregnated with a special antiseptic solution to prevent rotting. To evaporate moisture that can collect on the foil surface, special vents should be made.
An additional covering in the form of a laminate can be mounted on a wooden floor. This will further contribute to the reduction of heat loss in the house.

Penofol insulation of the "warm floor" system

If we install a warm floor in the house, the insulation process is as follows:

We fill in as a base a concrete screed with the addition of expanded clay;
After the screed has dried, we spread the insulation on the base, and, as mentioned above, we glue all the joints with aluminum tape, achieving complete tightness - this is necessary to ensure the hydro and vapor barrier of the floor;
We put heating elements on the insulation;
We put logs between the heating elements, on which we carry out the installation of a wooden floor. If we decide to pour a concrete screed over the foam foam, then a reinforcing mesh is pulled over the heating elements and the screed is poured. In this case, it is necessary to use penofol type ALP - concrete is an aggressive medium and can destroy other types of heat insulators;
After the concrete has dried, we trim the edges of the thermal insulator. We mount a decorative coating on top of the screed.

Until the concrete is dry, it is strictly not allowed to turn on the floor heating in order to avoid cracks. After the screed is completely dry, you can turn on the heating elements a little, gradually adding temperature and making sure that no cracks form.

Conclusion

Penofol is, perhaps, one of the most convenient types of modern insulation, which is suitable for thermal protection of almost any area in the house. The presence of a foil layer adds efficiency to its thermal insulation properties. It does not require waterproofing and vapor barrier - this role is played by foil. Self-adhesive type of foam foam removes the need for glue and other fasteners... Ease of use makes it possible to do all the work with your own hands.

At the price, penofol significantly exceeds mineral wool, penoplex, expanded clay, but the effect of its use more than justifies the financial costs, which, moreover, will pay off in the near future by saving costs for heating the house.

Competently carried out work on floor insulation is a guarantee of maintaining a comfortable temperature in the house and minimal heat loss. Such work can be carried out both during the construction of a new building and in operated houses, for example, floor insulation in a wooden house from the bottom of the basement. To achieve energy savings and reduce heat losses up to 20% will help not only high-quality floor insulation, but also right choice heat insulating material.

The presence of a basement in the house allows you to insulate the floor from below Source oig-homes.com

Benefits of bottom insulation

From the point of view of labor costs, it is more profitable to insulate the floor from above. In this case, the insulating layer is mounted between the frame (lags) and the top finishing layer.

But in some situations, bottom insulation is preferable.

This method of thermal insulation is most often used in private houses with an uninsulated basement, garage, in frame structures on pile and pile-screw foundations.

Bottom insulation has a number of advantages:

the layer of insulation is not exposed to loads from the furniture standing on the floor and the movement of people around the house, so you can use heat-insulating material of any hardness;

the height of the room does not decrease;

not only the upper flooring is protected from freezing, but also the entire floor frame, which reduces the likelihood of freezing and water ingress on the wood - this increases the service life of wooden structures and ensures their reliability.

It is more expedient to insulate a house on stilts from below Source valet.ru

Heat insulating materials

The choice of insulation for a wooden house is based on two criteria: incombustibility and the ability to resist the formation of mold fungi and other microorganisms. But when choosing a material for the lower insulation, the specific situation and the intended installation method are taken into account.

Before purchasing materials, it is better to consult with a contractor than to insulate the floor in a private house from below. Most often used:

mineral wool;

Styrofoam;

penoplex;

expanded clay.

Minvata is considered one of the best heaters, so many prefer it. The advantage is good sound insulation performance. Cotton wool is not subject to biological degradation, does not burn.

Cons: low mechanical strength and deterioration of thermal insulation properties when exposed to water or steam. Therefore, when using, special attention should be paid to vapor and waterproofing. Cotton wool can be flexible rolls or dense slabs.

Mineral wool in slabs is often used for insulation from the basement side Source silastroy.com

On our website you can find contacts of construction companies that offer a house insulation service. You can communicate directly with representatives by visiting the Low-Rise Country exhibition of houses.

Styrofoam- another popular insulation. Combines the good qualities of mineral wool and mechanical strength. But with a possible fire, it releases toxic substances. Due to its structure, it retains heat well and ensures minimal heat loss. Long service life eliminates the need for replacement, but moisture absorption can negatively affect some performance.

Penoplex... Recently appeared material - based on polystyrene, into which gas is introduced. The mass is foamed and squeezed into molding containers. The gas evaporates and a sheet of insulation with many pores is obtained at the exit. It is a material with unique thermal insulation characteristics, very lightweight, easy to install. Durability and immunity to biological organisms ensure a long service life. The material is non-flammable, does not emit harmful substances and does not absorb water.

Penofol- material for the production of which polyethylene foam is used. An aluminum film is applied to its top layer, which reflects heat, which gives the room the characteristics of a thermos. The structure of penofol does not contain pores, which does not allow it to pass air.

Penofol perfectly reflects heat Source ultra-term.ru

Expanded clay- bulk material, in the form of porous balls, which is formed during the firing of clay or shale. It is a completely environmentally friendly material that has high heat conservation rates, good fire resistance and resistance to freezing. But over time, expanded clay cakes under the influence of gravity and begins to lose quality, so this material must be changed periodically.

To make a decision on how to insulate the floor in a wooden house from below, it is necessary to choose the insulation that will perform the function of a heat insulator better than others in a particular situation.

Installation principles

Regardless of the choice of the type of insulation, it is necessary to follow the sequence of the work performed for proper insulation. If we look at the structure from the bottom up, it will look like this:

waterproofing layer;

thermal insulation layer;

vapor barrier layer;

construction for floor mounting;

Compliance with this order of work guarantees the maintenance of normal temperature regimes indoors and protecting the structure from freezing and rotting.

The easiest way to insulate the bottom is by lags. They are beams 5x10 cm in size and more, on which the floor is subsequently laid.

Floor insulation scheme by logs Source nehomesdeaf.org

After their installation (the recommended distance between adjacent logs is 1 m), plywood sheets, chipboards or beams are hemmed from below, on which a layer of waterproofing is laid. This is a measure to combat condensation, which can reduce the performance of the thermal insulation layer. Approximately the same technology is used to insulate the house "Stanislav Chalet".

Next, the insulation is laid. Its thickness should not exceed the thickness of the lag, but it is better to be smaller by a few centimeters. The next stage is the laying of a vapor barrier, which will prevent moisture from entering the insulation from inside the room. And finally, the floorboards are laid.

If it is necessary to insulate the finished floor in a wooden house from below, there may be problems with fixing the insulation, which can be solved in one of the following ways:

Fastening with glue... Almost any insulation can be glued to the surface of the floor (and ceiling in the basement) using special adhesives.

Fastening by rails... To support the insulation, beams, slats, etc. are nailed to the logs.

Docking in size. Tight joining of the heat-insulating material with the joists using, if necessary, spacer wedges.

When laying the insulation end-to-end with lags, it is necessary to strictly adhere to the size Source nehomesdeaf.org

In any case, it is necessary to lay a vapor barrier, and after insulation, hem the basement ceiling with boards. This will prevent the insulation and its particles from falling down.

On our website you can find contacts of construction companies that have a full production cycle. You can communicate directly with representatives by visiting the Low-Rise Country exhibition of houses.

Technology and features of floor insulation from below in a wooden house

For each of the types of insulation, there are some features of use.

Mineral wool

The dimensions of rolls and slabs are usually multiples of 60 cm, which makes this very distance the optimal step between the logs. The mineral wool is cut to size with a cutter and placed in the space between the logs. For a snug fit, the size should be 1–2 cm larger than the distance between the lags. Vata should not be forcefully crushed as this may affect its performance.

The best option would be to lay two layers of insulation. The second layer is laid in such a way that the joint of the lower layer falls on the center of the upper piece. This method of installation will prevent cold air from entering the room.

Video description

You can get acquainted with the stages of floor insulation with mineral wool along the logs in the video:

When working with this insulation, you must use individual means protection - gloves, respirator and goggles, since small particles can get into the mucous membrane and into the respiratory tract, which will cause irritation.

Penoplex and polystyrene

If foam is used when insulating a wooden floor from below in a private house, it is necessary to take into account several rules for working with it:

The foam absorbs water, so waterproofing is a must. Many experts do not take this property into account during installation, which leads to a decrease in thermal insulation characteristics.

It is recommended to cut the sheets not exactly to the size of the gap between the lags, but 1-2 cm less. This will fill the gaps between the sheet and the log with polyurethane foam, which will increase the thermal insulation properties. The joints between the sheets must also be foamed.

Fastening of sheets can be carried out using strips, spacer wedges or special adhesives.

Floor insulation with foam in a wooden house Source sk-amigo.ru

The principle of working with penoplex is no different. But due to the smaller thickness of the material, it can be laid with overlapping sheet joints in order to avoid the formation of islands of cold (similar to mineral wool).

But with this method, the consumption of material increases significantly, and this is an additional financial cost.

We offer you to familiarize yourself with the popular - from the construction company "Shelf" - presented at the exhibition of houses "Low-rise Country".

Penofol

Due to the property of not allowing moisture to pass through, penofol does not need additional laying of steam and waterproofing. But so that the water vapor that forms in the room does not settle on the insulation layer, an air gap is needed between it and the floor covering for air circulation.

Laying is done with the foil side up only. This will reflect the heat, which will increase the temperature in the house. Penofol can be used as waterproofing when laying mineral wool or foam. This can increase the thermal insulation several times, but this method is quite expensive.

Penofol joints are sealed with adhesive tape Source build.4-u.info

The material is sold in rolls and is easily cut into pieces of the desired size. Fastening is carried out with a construction stapler on staples or thin slats that are nailed. To improve the result, it is recommended to lay penofol in several layers.

Conclusion

One of the main problems wooden houses- cold floor, which interferes with a comfortable life and increases heating costs. Correct insulation will solve this problem. Regardless of the material that is chosen for insulating the finished floor in a wooden house from below, it is required to strictly follow the general technology and order of insulation, as well as take into account the features of a particular insulation. The cost of arranging insulation pays off within one season.

16.11.2018 Warm floorComments: 0

Insulation of the floor in a private house with penofol. Floor insulation in a wooden house from below: materials and installation technology

Insulation of the floor of a wooden house with penofol

Performance of work on insulation of floors and ceilings is provided for in almost every project of a wooden house. This is not surprising, given that 20-25% of heat loss occurs through these elements of the building. In recent years, building owners increasingly decide to insulate the floor in a wooden house with foam foam. This approach is quite justified, since this heat-insulating material is deservedly considered one of the most effective of those that are presented today on the domestic construction market.

Pros and cons of using penofol

The use of penofol in a wooden house provides a number of serious advantages. The most significant of them are:

excellent parameters of heat and sound insulation;
the presence of a foil layer, which ensures the waterproofness of the material;
environmental safety and compliance with any, even the most stringent sanitary and hygienic requirements;
a variety of types of material, which differ in the number of foil layers, application of self-adhesive composition and laminated polyethylene coating on one side.
small layer thickness achieved by low thermal conductivity. As a result, penofol in the floor of a wooden house saves useful building space;
simplicity and convenience of working with the material;
the insulation is inedible for rodents and is not flammable - two important advantages, especially relevant for wooden buildings.

The presence of such an impressive list of advantages explains why today more and more floor insulation is performed with foam foam in a wooden house. It is also important to note the fact that the material has practically no flaws. Among its disadvantages, only insufficient strength and stiffness parameters can be distinguished, which significantly reduces the effectiveness of the insulation for outdoor use.

Work technology

Today, several different technologies are used, according to which the floor is insulated in a wooden house from below with foam foam. One of the more popular options is this. First, the device is made of expanded clay concrete screed. After it dries, penofol is laid. The foil side, as in all other cases, should be directed towards the inside of the building, since it serves to reflect heat into the premises of the house.

A prerequisite for the effective use of the material is careful gluing of the joints of individual strips. Also, penofol should go to the walls by at least 15 cm. After that, logs are laid on the insulation, along which the wooden flooring is made. Naturally, all wood structures are impregnated with antiseptic compounds.

It is extremely important to leave a ventilation gap between the foamed foam layer and the boarding. To effectively remove moisture that can accumulate on the insulation, it is necessary to make vents.

Another option for warming the feather

pilorama-chita.ru

A few can be calculated and not always, but it is necessary to strive for this. This fully applies to the insulation of the premises. In our climate, it is necessary to insulate everything, the roof, the floor, the walls, and the ceiling, otherwise we risk freezing or flying into the chimney with the cost of heat. We recommend that you consider a couple of options for floor insulation at various construction stages, including already in a finished house. The technologies just depend on the answers to our questions, thanks to this, first, thanks to its principle, it is necessary to consider the most common option when the house does not have a lower floor or basement. In this variant, the situation becomes somewhat simpler. For insulation, according to the technology, you just need to make a primary screed, which will serve as a rough floor, and the insulation should not be placed on it, using vapor barrier membranes or doing without them at all. But only if penoplex or polystyrene materials serve as insulation, they are not afraid of moisture.

For thermal insulation in the construction procedure, only moisture insulation is placed on the screed different types, at least roll roofing material, then put wooden bars, after which an insulator is placed between the wood bars, which is covered with a parisolator so that the condensate does not fall on the insulation.

The house has already been built. What to do?

Heat insulate. Exclusively for special designs. Of course, you can go along the difficult and expensive path - to dismantle the entire floor in the house made of wood and lay down the wooden blocks again afterwards. But this method is not always possible, since wooden blocks can be part of supporting structure and it is economically unreasonable to complicate your life. Consider the simplest insulation variations.

Here the question is different - how profitably the floor covering was saved. If it is in excellent condition, then it is a sin to touch it. Then you can simply insulate the wood floor under the laminated parquet directly on the boards. To do this, use foil-clad penofol. However, this is the case if the floor is solid and without cracks, when there is no need for repairs. If the surface is tired, it creaks and cracks. Has obvious damage, then it is worth combining insulation with a change of flooring. It is easy to rebuild new boards, since the old ones after the dismantling has been completed may not transfer this operation.

Warming mineral wool, expanded polystyrene and polystyrene foam

Warming takes place, as a rule, according to one technology, the only difference is that all different variants basalt wool have high hygroscopic properties. This annoying property is removed with a vapor barrier layer. It is placed on top of the mineral wool, glued at the joints in order to maximally protect the material from getting wet.

Expanded polystyrene and polystyrene foam have similar properties, thanks to which they can be analyzed to insulate the floor at the same level. These materials are so good that they do not cake, unlike mineral wool, they are not afraid of water, they do not absorb moisture. There are different opinions about rodents, but if we were mice, we would definitely not live in expanded polystyrene, but would find something more environmentally friendly.

Similarly, having calculated all the invisible moments and taking into account the points that we talked about, you can with my own hands make the floor thermal insulation and make the house warmer and more comfortable.

kvartal-club.com.ua

Insulation of the floor in a wooden house from below

In order for the house to be pleasant and comfortable, it is not enough to have only a roof and walls. It is worth making sure that there is warmth in the house. That is why the issue of floor insulation in the house is not of last importance. By insulating the floor, you can not only ensure comfort, but also significantly reduce heating costs. Indeed, through the floor, you can lose up to 20% of the heat. With effective floor insulation, you can keep your home at the right temperature. It is better to carry out insulation work even at the construction stage. They must be taken into account in the design. It is very important to insulate the basement. You can carry out all the work yourself. This is not difficult. You will learn how to insulate the floor below.

Insulation of the floor at the time of construction of the house

If the construction of the house has not yet come to an end, then it is advisable to insulate the floors from below. Here, expanded clay backfill will be very popular.

There are two options here:

elimination of the cavity between the beams in full;
elimination of the cavity between the layers of boards.

In the first option, geotextiles are placed directly on the ground. Then, in the subfield, the distance is completely filled up to the top of the beams. Further, a floor of boards is installed on the logs. It is worth noting one caveat that the use of this method makes sense only when the distance to the ground is small.

An example of a flooring scheme in a wooden house

In the second case, two floor layers are made. The backfill is laid between the layers. It is worth making the floor insulation from below from the cold. For this, the board from the board is sewn to the beams. It is fastened with self-tapping screws or nailed. The fitting of the boards is carried out as tightly as possible to each other.

Backfill is made at the top. Logs are mounted on the beams. After that, flooring is done. Sometimes installers provide for floor ventilation. In this case, masses of cold air can freely enter the house through a bulk insulation system. Due to such ventilation, it is possible to protect the floor of the house from mold.

But in this case, the following situation turns out. If the floor is cold, then cold air will penetrate directly into the house. It is not difficult to fix this problem. It is enough to put a polyethylene film or some other airtight material on the insulation.

An example of a basement insulation scheme for a house

At the same time, it is important to carry out work in such a way that ventilation is maintained. If you put a polyethylene cover under the insulation material, then condensation in the form of water vapor will accumulate on it. This will only make the situation much worse.

Floor insulation materials from below

Mineral wool

Mineral wool is one of the best insulation materials

Insulation in the house or in the country with the help of this material is one of the most common methods. Cotton wool can be glass, slag or stone. The great advantage of this material is that it is absolutely non-flammable.

It also has other advantages. These are biological resistance, fire resistance, high heat and sound insulation characteristics. But this material also has its drawbacks. This is a low mechanical strength. Mineral wool perfectly absorbs moisture, while its thermal insulation properties may be somewhat lost.

So, if you decide to install such a heater, it is important to pay due attention to the steam insulation. This insulation cannot be attributed to completely harmless materials.

Mineral wool is produced in the form of a bendable mat or dense slab. The denser part of the slab is marked with a blue stripe. When installing, check that the marking is pointing upwards. Mineral wool is often used in a wooden house or in a country house. Plates are mounted in one layer.

Izovol, which is made on the basis of mineral fibers, has low thermal conductivity. Izovol is a non-combustible material. Rockwool is a basalt insulation. It has good resistance to external stress. Due to its special design, it practically does not change shape. In addition, it can perfectly neutralize sounds.

An example of a floor insulation scheme in a wooden house from below

Insulation is placed between the log. Everything will depend on whether it is possible to hem the shield from the boards to the beams from below. If the subfloor is low, the shield is attached to the beams from above between the joists. If necessary, the lags can be raised. Further execution of the procedure is quite standard.

Styrofoam

Very often, insulation in a private wooden house or in the country is carried out using foam. This material has a huge number of advantages. But he has almost no shortcomings. Foam insulation can guarantee high strength, resistance to fire and various chemicals.

If you decide to carry out insulation in a wooden house, foam insulation will be a very effective option. This material has a unique cell structure that makes it durable. Its disadvantages are the same as those of mineral wool. It easily absorbs moisture, as a result of which it can quickly lose some of its properties.

Floor insulation scheme for reinforced concrete screed

Insulation can be carried out with foamed or extruded foam. The latter has a particularly strong structure. The process of insulation with foam is the same as with mineral wool. But there are also some peculiarities. In the best case, the width of the insulation and the lag should be the same. After all, the foam will act as a special support for the flooring.

Plates are laid with minimal gaps. All gaps are necessarily foamed. No vapor barrier is needed here. Thick slabs are mounted among the logs. After they are just foamed. The bottom of the shield is not sewn.

To blow out ecowool, you will have to use a compressor. Without him - nothing.

Thermal insulation using industrial equipment

Ecowool is blown into the hole between the floor with a compressor. In this case, a uniform filling of the voids with material occurs. After removing the flooring from above, the ecowool is laid using the wet method. It contains sticky particles.

Do not forget about waterproofing.

It is due to them that the layer turns out to be quite tough. After that, he will not sit down. In this case, vapor barrier is not provided. After all, the material is not afraid of moisture.
With the help of polyurethane foam, the available space between the beams can be completely filled. In this case, you will get excellent thermal insulation that will last for many years.

Insulation with small heat leaks

Quite often, in a private house or in the country, the cold penetrates into the room through poorly connected or cracked boards. It is possible to eliminate such gaps in a wooden house only if you decide to completely redo the floor.

Floor insulation scheme in a wooden house on the second floor

In this case, it is advisable to use a roll of insulation from the bottom instead of replacing it. You can insulate the floor in a private house with penofol. This material is a foamed polyethylene with a foil lined surface.

The surface that reflects the light turns towards a warmer space. In this way, heat leakage is effectively prevented.

Table of heat losses that occur in a wooden house

If you decide to insulate the floor with penofol, you will have to redecorate the old floor covering. At the same time, do not make too thick a substrate from below. Otherwise, the floor will spring too much. Linoleum, on the other hand, can push through the legs from furniture. If the thickness of the material is 0.4 cm is small, it is better to take a denser material for laying. For example, it can be a cork backing.

If you do not want to carry out serious repairs in the apartment, you can insulate it with penofol from the underground. Slats can be used for fixing. They are stuffed on top of the insulation.

Insulation in the house from the basement side

Thermal insulation of the floor of a private house from the basement has a very important role. With the help of high quality heat insulation, you can not only reduce heat loss, but also protect the house from dampness and destruction in the future.

Thermal conductivity table of some materials

Many professionals say that warming the basement from below will help solve a large number of problems that can arise in a private house made of wood. For thermal insulation of the basement, you can use foam, foam insulation and other materials. You can use mineral wool to seal the floor from the basement side.

The width of the lag and pieces of insulation when using foam must be the same.

With the help of polystyrene, usually only the basement floors are insulated, but also the walls. If your house has a cool floor, then before purchasing a heater, you should think about how to insulate the basement.

Video

You can watch a video on how to properly insulate a wooden floor from below.

fastbuildings.ru

How to insulate the floor in a wooden house from below with your own hands?

A house made of wood requires thermal insulation, especially for ceiling surfaces and floors. Thermal insulation of wooden floors is a primary task, not only the amount of heating costs depends on this, but also the comfort of the people living in it.

In order to start insulating the floor, you need to choose a method of insulation and high-quality material. Consider what kind of insulation are suitable for this process, and how to produce high-quality and inexpensive insulation.

It is impossible to insulate the flooring immediately after construction, since the material has not yet shrunk and can damage the insulation. Isolation is carried out after the building has defended for six months

Material selection

Before buying an insulating material, you should pay attention to the characteristics of the insulation:

moisture resistant;
fire resistant;
environmentally friendly;
with a long service life;
easy to install;
have good thermal insulation properties;
have a small specific gravity;
low cost.

When insulating wooden buildings, the most important characteristics are considered to be service life and resistance to fire. Consider what kind of insulation for the floor in a wooden house you can use.

Minvata

Highly good insulation, used for thermal insulation of any buildings.

Advantages:

excellent fire resistance. This material does not burn and prevents the spread of fire;
good performance in thermal conductivity;
acts as a good insulator from extraneous sounds;
vapor permeability. Many builders prefer to use mineral wool in the insulation of wooden structures - it "breathes";
easy to install;
ecologicaly clean.

Manufacturers offer two types of mineral wool: in mats and in rolls.

It has a very big drawback - it absorbs moisture, which reduces its insulating properties to almost zero. But this can be avoided by carrying out insulation work in accordance with all the rules. Most private developers use mineral wool, because of its low cost.

Dry screed

Material with excellent performance based on gypsum fiber. It must be carried out after complete shrinkage of the floor in a wooden structure.

Advantages:

good heat insulator;
does not burn;
easy to assemble;
used with any finishing, flooring materials;
good sound insulation performance;
no need to equip a thick layer.

There is a major drawback - cost. Insulation turns out to be expensive, since with one bag of 20 kg, you can insulate 1 square meter of area.

Since the material is made on the basis of gypsum, it is afraid of moisture. Unlike mineral wool, a dry screed does not lose its insulating qualities when wet, but the floor covering can be severely damaged.

Glass wool

This material has been used for insulating surfaces for a long time, and has established itself as a reliable and environmentally friendly insulator.

Material pluses:

does not burn;
easy to use;
ecologicaly clean;
inexpensive cost.

He has one significant drawback - shrinkage. Glass wool decreases in size by 15 centimeters per meter per year. The result is a break in the integrity of the insulating layer. As well as mineral wool, this material is unstable in a humid environment. When wet, all thermal insulation properties are lost.

Styrofoam

Quite demanded insulation among private developers. The ratio of quality and price for this material is optimal.

Polyfoam tolerates large changes in temperature and humidity without losing its insulating properties. The material is able to provide high-quality thermal insulation even at a thickness of 10 cm.

The environmental friendliness of this material is confirmed by quality certificates, which is why foam insulation is so in demand.

The main disadvantage is not strong enough. But if you properly equip the thermal insulation layers, then the foam will serve for a long time.

It is also worth noting that the coating does not allow air to pass through and if you do not make a vapor barrier, then the arrangement of the floor in a wooden house may be of poor quality.

Penoplex

Many private developers ask the question: how to properly insulate the floor with penoplex, and what kind of material it is. Improved foam with many benefits.

This insulator has many advantages, for example:

does not burn;
not susceptible to moisture;
tolerate temperature changes;
insulates sound well;
lasting.

Of the disadvantages, only the cost. But floor insulation with penoplex is worth it.

Ecowool

Thermal insulation of the floor with ecowool is the right choice for any developer. This material consists of cellulose fiber, boric acid with the addition of borax. Thanks to the properties of this insulator, a continuous, seamless layer can be created. Perfect for insulating the floor in a wooden house from below.

Expanded clay for insulation

In the construction of houses, the insulation of a wooden floor with expanded clay is often used, which has a lot of advantages:

low price;
simplicity of arrangement of expanded clay layer;
environmental friendliness;
lie down evenly and without seams;
not afraid of temperature changes;
the ability to insulate double floors, which is heavily loaded.

Penofol

New foil-clad product based on polystyrene. The good thing is that they can insulate the floor in a wooden house without opening the flooring. The process is not complicated:

Take penofol, and fix it from below to the wooden floor using staples and a stapler.

It is worth remembering that the strips of the heat insulator should overlap each other by 5 cm. For complete insulation of the seams, they must be glued with aluminum tape.

These are very popular and demanded insulators. Consider the best way to insulate the floor in a wooden house with your own hands.

Thermal insulation works - technologies

How to insulate a wooden floor? The insulation is applied depending on the installation of the floor in the wooden house has been applied. Below are the steps for the most commonly used types of insulation. To get started, you need a floor insulation scheme, it will help you accurately calculate the amount of insulator.

Insulation at a short distance to the underground

You will have to completely dismantle the old, wooden floors, which makes the work time consuming. And decide how to insulate the floor in a wooden house. The principle of action is as follows:

Dismantle skirting boards and floor coverings before insulating floors in a wooden house. If in the future you plan to use the old finish, then it is worth working with special care. When disassembling the floor, all boards are numbered to simplify their installation.
Carry out a revision of the tree from which the logs are mounted, before laying the thermal insulation. Old and rotten ones should be replaced.
A support bar is attached to each lag from below.
Preparing material for a wooden floor - rough. The length of the pieces of lumber should be one centimeter less than the gap in which it will fit.
We collect the rough floor, there is no need to fasten the boards to the bars.
Install vapor barrier. If the house is in a damp place, it is better to use a waterproofing material - glassine. The material is laid with an overlap on the walls - 15 cm, the seams are glued with aluminum tape.
Equip the logs of the finished floor and lay thermal insulation between them. The best way to insulate the floor in a wooden house depends on the developer.
Mount the waterproofing material over the insulation.
Fill the battens of the battens with a thickness of 2 cm, for ventilation of the insulation under the finishing coating.
Installation of floors in a wooden house with numbered boards is in progress. If the old boards are in an unsatisfactory condition, then it is worth replacing them.

Ventilation for an insulated floor in a wooden house is very important, as it helps to ventilate the gap between the floor and the insulation.

Insulation of the lower part of the floor with a basement

There will be less work, you can carry out floor insulation in a wooden house from the bottom of the basement. The procedure for performing insulation:

From the basement side, you need to attach a vapor barrier to the floor.
a small bar or aluminum profile must be attached to the sides of the beams.
Cut the insulation so that it is 2-3 centimeters larger than the gap between the beams. Install insulation.
Screw the batten to the previously screwed profile or bars to support the insulating material.
Close insulation and steam strips insulating material.
Close the insulation with a topcoat.

It is much easier to insulate the floor from below than to apply other insulation methods.

For this method of insulation, rigid insulating material is not suitable; it is better to use ecowool or mineral wool.

Regardless of which side you start the insulation from, the order of laying the insulating material does not change.

Double floor

This option is well suited for rooms with high ceilings, since such a design can take up to 20 centimeters in height.

Installation instructions:

The plinth and floor covering are being dismantled. If in wooden floor there are rotten elements, they need to be replaced. Foam all the cracks.
Install the logs, the thickness of the insulation for the floor must correspond to the thickness of the bars, which are nailed directly onto the old coating in increments of 60 cm;
Check the overlap horizon with a building level. For leveling, you can use small spacers under the block, or comb the protruding areas with a plane.
Install a vapor barrier material with an overlap of 15-20 centimeters on the walls.
Laying insulation on the floor.
Cover the insulation with foil.
Install a new floor.

You can insulate the floor with expanded clay, which is simply poured onto the rough covering of a wooden house.

If the building stands on screw piles, then one floor insulation in a wooden house will not be enough. Build a windscreen around the perimeter of the foundation, while leaving ventilation holes to ventilate the subfloor.

In custody

Now you know how to insulate the floor in a private house using various thermal insulation materials. What kind of insulation to buy depends on your financial capabilities and the load that will be on the flooring. How to insulate a wooden floor is up to you.

teplota.guru

How to insulate the floor in a wooden house from below?

Helpful advice on construction and restoration work is always in demand. They expand the knowledge of the methods and sequence of work. Introduce you to materials, their properties and how they are used. All this will help you make the right decision.

What material should be used to insulate the floor?

Using the system "warm floor" with water heating or "infrared underfloor heating" with eclectic power, be prepared for the fact that this will require regular material investments and permanent residence in the building. So that the floor in the house does not cool down, mineral wool mats, stone mineral wool slabs, penofol, expanded polystyrene, polystyrene concrete, glass wool, cork slab, ecowool, penoizol, foil roll, sawdust material, expanded clay and others are used to insulate its lower part.

Basic rules for insulation

The subfloor serves as the basis for thermal insulation.
Under all types of heaters used, insulating floors from moisture must be laid (moisture comes from the ground and condensation forms).
The same means are used for the outer layer (condensation from the room).
The insulation is overlapped in order to maintain its absolute tightness.
The waterproofing material should also be lined on the lower part of the wall adjacent to the floor by at least 10-15 cm.
Wooden floor slabs should not fit snugly against the structure. The gap will keep them from deformation, which can be affected by shrinkage of the soil or house.
Wood materials used for flooring must have a low specific gravity of moisture, treated with antiseptics and antipyrine and have high strength.
The entire structure, a sub-floor with insulation, must be ventilated through air vents (small windows in the foundation, which are closed in winter).

Insulate the floor in a wooden house with mineral wool

The beginning of the work depends on the type of foundation of the house.

Lay the floor beams (timber) on a substrate with waterproofing. For this, glued laminated timber 640 x 480 cm is used. These dimensions can be adjusted, depending on the severity of the structure. The timber is treated with protective compounds. Beams should not be in contact with the structure.
An overlap waterproofing material is laid on the beam. It is convenient, in this combination with insulation, to use polyethylene foam.
Lags are laid on it. The step between their rows is from 100 to 120 cm. Their height should not be lower than a layer of insulation (it is recommended to use logs 75 x 100 cm). The step size can be adjusted according to the material used. With a mat width of 50 centimeters, the pitch should be of the appropriate size. This is a necessary condition for insulating floors, since the mats should fit snugly to the logs without forming gaps.
Lay the subfloor between them (lags), fixing them to the timber. Edged board(20 mm). Using plywood with a thickness of 10 mm, you can place it on the thermal insulation layer and only then lay the logs.
The next stage of work will be floor insulation. To do this, use two slabs of 50 mm mineral wool or one 100 mm thick.
Cover the insulation with a layer of vapor barrier. The same property of protection is possessed by a cement screed with a thickness of 5 centimeters. You can use mortar (cement, sand and water) if you don't have purchased materials at hand.

Having completed the process of lower floor insulation, you step over to the flooring of the upper covering. It is necessary to leave a gap between it and the vapor barrier layer for ventilation and natural drying of condensate. It should not harm the flooring of the room.

How to insulate the floor with penofol in a wooden house?

The foamed polyethylene composition welded onto the foil material has a double effect. Penofol insulates from moisture and retains heat. There is one- and two-sided insulation roll, types A and B, respectively. Upper layer reflects the heat coming from the side of the room. The lower part of the cover protects against moisture coming from the ground. For the insulation of residential premises, type A is used with a maximum thickness of 5-10 centimeters.

Penofol for floors in the house is recommended to be combined with other heaters, using only its one-sided version (if it is not a sauna or bath). It is laid with the foil outside (the foamed part to the insulation) and overlapped. When cutting blanks, a stock of 10-12 centimeters of roll insulation is left. It should lie on the lower base of the wall, adjacent to the floor (leave a margin for possible deformation of the building).

Penofol, as a heater for concrete bases

Start by marking the level for the subsequent leveling of the subfloor. To do this, you will need a level, rope, beacons, nails and a hammer. Start working from the far end. At the level of the device, pull the ropes from the wall to the beacons installed over the entire floor area along the level. It is customary to observe the gap between them (beacons) from 60 to 80 centimeters (it will be easier to control the level when pouring the solution). Fix the rope and use it as a fixed limit for the composition.

Start pouring the mortar from the wall opposite to front door... The composition for the concrete screed includes sand, cement and water. You can use ready-made mixtures, they are diluted with water before use in work.

There is a more convenient and faster option for pouring concrete floors. Self-leveling mixtures are used for these works. It is enough to dilute them with water to the required consistency and lay them on the floor. They will distribute themselves correctly.

The frozen surface of the leveled floor is covered with an overlap roll of insulation, foil to the screed, overlaid on the lower base of the wall

Insulate the floor with expanded clay in a wooden house

Expanded clay is a natural component. It can be recommended as insulation for floors, but it must be borne in mind that the compositions of its mixtures exert pressure from 200 to 400 kg / m3. If there are no contraindications associated with this factor, then the best insulation you shouldn't be looking.

Place the underlayment on the sub-floor using an overlapping foil material, partially placing the material on the walls of the house (10-15 cm from the floor level).

Before pouring leveling mixtures, the floors are prepared by cleaning chips and convex places. Before pouring the mixture, the base is covered (treated) with a primer. The most popular are compositions with acrylic and bitumen. They form the basis for the adhesion of the cement and plaster mixture to the substrate.

The process of pouring with expanded clay mixtures can be simplified if you make a second black ceiling (it is necessary to maintain a fixed height of the material level). The compressor will ensure the supply of ready-made compounds under pressure, which will increase the density of their adhesion to the boards and to each other.

Video: Insulation of the floor covering through the underground

Expanded clay keeps heat well, but can absorb moisture. Therefore, it is closed hermetically on top with a layer of vapor barrier.

Conclusion

A warm house can be when its floor has no cracks, it is insulated with high-quality materials and according to the correct technology.

www.ekt-sdvor.com

Penofol floor insulation - inkmilk.ru

Penofol is an effective heat-insulating material that has low thermal conductivity and reliably protects houses from the cold even when a thin layer of material is laid. It is often used for floor insulation. since due to its special properties, penofol increases the resistance to heat transfer.

The scheme of laying penofol with a reflective layer down.

Experts say that floor insulation with penofol is the best option, because thanks to the reflective surface and the large number of closed pores, the total heat loss is significantly reduced.

Penofol can be perfectly combined with mineral wool and fiberglass when insulating floors, where it will act as a vapor barrier. The use of this material will be advisable in those structures that require not only thermal, but also noise protection, but the thickness of the insulator should be minimal. To insulate the floor with foam foam, you do not need to additionally use waterproofing and vapor barrier membranes, since the material can replace them.

Penofol classification

Since the production of penofol began, its properties, scope and structure have undergone colossal changes. Previously, the material was in the form of a roll of sewn polyethylene foam, one side of which was foiled with aluminum. With the help of this version of the material, thermal insulation of rooms is still performed, since it has a high efficiency. In addition to the classic type of penofol, other types of material are produced, which are endowed with a number of useful properties:

Floor insulation scheme with foam foil with double-sided foil.

With one-sided foil - type "A". It is used in conjunction with other materials for insulation.
With double-sided foil - type "B". Standalone use is allowed.
Type "C" - one side covered with special glue and protective film, and the second - with foil. Installed by gluing to a surface that requires insulation.
Type "R" and "M" - embossed foam foam with one foil side.
Type "ALP" - has one-sided foil up to 14 microns, which is laminated with polyethylene film.
Perforated material. It has a special structure that allows air to pass through.

The type of penofol is selected depending on the type insulation works, i.e. walls, floor, roof.

Back to the table of contents

Penofol laying technology

Penofol characteristics table.

Before insulating the floor with insulating material, it is necessary to decide on its type and installation technology. It is necessary to lay penofol types "C" and "A" under the finished floor. The process of insulation begins with a concrete screed mixed with expanded clay, or with the placement of foam plates with a thickness of 5 to 10 cm. Next, foam foam is laid with an overlap of about 10 cm and all joints are glued with construction tape.

It should be noted that condensation can settle on the heat-insulating material, therefore, measures must be taken to prevent such a phenomenon. To do this, fill slats up to 2 cm thick above the foil surface, which will create a ventilated space. If a wooden floor is being insulated, then the lags play the role of the slats. It is important to remember that all slats and logs must be impregnated with antiseptic and drying oil in order to protect the wood from decay.

If the insulation is carried out using the "warm floor" system, then the foam foil is laid with the foil side down on a completely dried screed, and in other cases the material must be placed with the reflective side up. A polyethylene film is laid on top of the heat insulator, which will act as a vapor barrier. To insulate the floor on the lower floor, located above the basement, you should use Penofol type "B".

As a rule, when installing a "warm floor" system, the heating elements must be filled with a screed in order to further obtain a flat surface for laying, for example, laminate flooring. In such cases, the type of foam "ALP" should be used, since its foil side is laminated with a film, and, as you know, cement is aggressive in relation to aluminum.

Insulation of floors with foam of this type is carried out over the primary screed, while the reflective side should be on top. The sheets are laid with a slight bend, about 10 cm, on the walls and glued with aluminum tape. Next, the heating elements are installed, the reinforcing mesh is spread and the entire floor area is poured concrete screed... When the surface is completely dry, it is necessary to trim the free edges of the insulation.

Using penofol for floor insulation is the best solution. With this material, moisture will not penetrate into the room, noise will decrease and it will become much warmer, since the foil surface reflects heat, directing it back into the house.

Penofol is a material made of foamed polyethylene, which simultaneously serves as a heat and vapor barrier. In addition, a layer of foil welded on top of the polyethylene reflects thermal radiation. The material has no pores, which means that it does not allow air to pass through and, therefore, imparts the properties of a thermos to the insulated structure. Where can it come in handy? When insulating baths and saunas, which should store hot and humid air for as long as possible. Also cold floors, for example concrete base on the ground floor of the building and the device of the underfloor heating system. Let's see how the insulation of floors with penofol occurs in each of these cases.

What is and how is penofol used?

A layer of foamed polyethylene in a foam sheet containing air bubbles, due to which, in fact, insulation occurs, can be a layer from 3 to 10 mm. The foil layer in all penofol modifications is the same, but it can be welded on one side (type "A") or on both sides (type "B"). There is also penofol, which has foil on one side and an adhesive layer on the other - "self-adhesive" penofol (type "C"). In addition, there is penofol with one layer of foil, which is laminated on top with a layer of polyethylene (type "ALP").

Penofol type "A" is usually attached to another insulation (foam, styrodur) using staple staples or nails. Type "C" can be glued on them or directly on the base. Type "B" is used for stand-alone fastening.

How to lay penofol on a concrete floor

The cold floor for insulation should first be poured with a concrete screed with expanded clay, but it can be replaced by a layer of foam plastic with a thickness of 5 to 10 cm. each side. The joints are glued with aluminum tape.

Moisture, from which penofol protects the structure, without being able to pass through it, will settle on it. To prevent this from happening, a space for ventilation with vents - holes through which air can freely pass through to remove this moisture - needs to be arranged over the foil-coated layer of penofol. To do this, on the foil side of the foil, slats are stuffed with a width of 1.5-2 cm, creating space for air movement. Logs can play the same role if it is decided to lay a wooden floor. Lags and slats need to be impregnated with an antiseptic or drying oil. They must be laid over the entire length of the floor, retreating 1-2 cm from the walls with a step of 35-40 cm. The horizontal laying is checked by the level, the bending logs must be supported with split slats. Planks 2-3 cm thick are laid perpendicular to the logs, and on top of a sheet of plywood 12 mm thick. You can use 6-8 mm plywood, but lay it in two layers. You can choose linoleum or laminate as a topcoat.

Underfloor heating system device

Penofol (type "A" or "C") is placed on the base with foil upwards, heating elements are laid on it, logs are laid between them, on which the floorboard is laid (1st scheme).

If a cement screed is to be poured over the heating elements (for example, under a tile), foam foam type "ALP" is needed, since cement mortar- an aggressive environment for aluminum, which covers penofol (2nd scheme).

In order to isolate the floor from impact noise, penofol is laid with a margin of 10 cm on each wall. Thus, a "floating floor" system is obtained.

To ensure hydro- and vapor barrier, all joints of the canvases are glued with a special aluminum tape.

After laying the heating elements, the reinforcing mesh is laid, after which the floor area is filled cement screed... After pouring the solution, the edges of the penofol are trimmed.

This is followed by a fairly long period of heating the floor and putting it into operation.

Insulation of floors with penofol guarantees heat, hydro and noise insulation (reduces impact noise by 20 dB) and ensures uniform heating of the floor surface due to the reflective effect of penofol.

Warm floors in a house or apartment are a guarantee of comfort and, most importantly, the health of all family members. The construction market offers many materials for insulation. One of the most common methods today is floor insulation with penofol.

Penofol classification

The material is polyethylene foam. It is produced in rolls with a thickness of 0.3 to 1 cm. The foil is welded on the same layer, regardless of the thickness of the material itself. Penofol type "A" is covered with foil only on one side, type "B" on both sides. Type "C" has a self-adhesive layer, it can be easily fixed to any surface. Finally, the "ALP" type has a polyethylene laminated layer.

Fig. 1 Penofol on a concrete pavement with an overlap on the walls

Self-adhesive material does not require additional fixation. In other cases, it is fixed with a construction stapler, nails with a wide head or special glue.

Insulation of a concrete floor

The first step is to align with an additional screed. You can lay penofol on a concrete floor without a screed, if it is initially flat enough. Then remove all debris and dust from the surface. For such floors, material of type "A" or "B" is suitable, up to 10mm thick. The joints are necessarily glued with special aluminum tape.

On penofol itself, a hard coating does not spread. First, it will not be practical, but Secondly moisture can accumulate on the foil, which will negatively affect any coating. To prevent dampness from forming, it is recommended to place 1.5-2 cm thick slats or logs on top of the insulation, on which the boards are subsequently attached.

The lags should not reach the wall 1-2 cm, to create ventilation. Before installing wooden structures, they are treated with an antiseptic solution or drying oil. If you insulate the floor with foam foam, in this way, you can avoid excessive accumulation of moisture under the main coating.

Fig. 2 Penofol under wooden logs

The main stages of floor insulation using the "pie" method

Conventionally, several stages can be distinguished in the methods of using expanded polystyrene:

Cleaning of concrete pavement;
Penofol is placed on the floor so that it goes a few centimeters onto the walls;
Installation and fixing of wooden blocks;
Filling the space between the bars with mineral wool, polystyrene plates or other insulation;
Fixing the second layer of penofol over the bars or lag;
Placing boards on top of which 12cm plywood or chipboard is attached.

After that, you can start finishing the floor with linoleum or laminate.

Thermal insulation of a wooden floor

Usually such an event is held in country houses or summer cottages. This can be done in two ways: the first is on top of the boards and the second under the boards.

Warming a wooden floor with foam foam on top of the boards is not a complicated process. When laying, we direct the foil inside the room. The joints are glued with a special tape. You cannot put linoleum or laminate on the heat insulator itself.

First place thick plywood or chipboard. It is worth considering that penofol will interfere with the reliable fixation of any wood board or even deform it. Therefore, its thickness must be optimal.

The best way to insulate a wooden floor with foam foam is to place it under the boards. But for this they must be removed. Usually, insulation is carried out in this way when a change of boards is required.

Fig.3 Penofol in the "Warm floor" system

The use of expanded polystyrene in the "Warm floor" system

Even in such an independent system, it will not hurt, and sometimes it is simply necessary. Penofol under the warm floor is usually placed to prevent heat loss from the bottom of the heating elements or to additionally reflect it.

When using electric heaters, the material is placed directly under the system itself. In this case, type "A" or "C" is perfect.

It is better to use penofol for a warm floor, where water heating elements will be used, with a laminated coating, as they are often poured with a cement screed. Cement is a rather corrosive medium and can negatively affect the material, especially when heated.

Materials used

Going to the store building materials, you can see how wide the range of products in question is. Each heat insulator differs in its dimensions, characteristics and installation method. The choice of this or that material depends on the personal wishes of the owner and the characteristics of the floor covering.

Mineral wool

For thermal insulation of a cold wooden floor, mineral wool is often used. The heat insulator is produced in the form of elastic mats and panels. The process of its installation is carried out in one layer.

Insulation mineral wool

The main advantages of the material include:

high noise and heat insulation performance;
long service life;
resistance to fire and high humidity;
acceptable cost;
security;
resistance to mechanical and chemical factors.

Polyurethane foam

The material is ideal for thermal insulation of the floor from below. Its peculiarity is that it contains pores that are filled with air and gas. Polyurethane foam is lightweight, but retains excellent thermal energy... Possesses maximum resistance to the formation of fungus and mold. It does not lend itself to decay and the influence of acids.

Insulation Polyurethane foam for the floor

Polyurethane foam is laid using a special technique, and it is also characterized by excellent adhesion to the surface. With the help of this material, you can carry out floor insulation. different shapes without forming joints.

This heat insulator for floor insulation from below is considered the most popular. Due to its special structure, a low level of vapor permeability and heat conductivity, fire resistance is achieved. The material is also distinguished by its reliability and resistance to the influence of mechanical and chemical factors.

Insulation foam for the floor

Styrofoam has a long service life, while retaining its thermal insulation properties. Its main disadvantage is that it absorbs a small amount of liquid, which has a detrimental effect on certain properties.

You can make the floor warmer in a wooden house with the help of penoplex. It is distinguished by its light weight and homogeneous polymer composition. Thanks to this, there is no load on the base of the house. The heat insulator is made by means of extrusion - forcing soft raw materials through molding recesses of special equipment.

Penoplex insulation for the floor

The heat insulator is highly reliable and resistant to low temperatures. It will show its thermal insulation qualities for a long time and will create reliable protection against moisture penetration.

Thermal insulation of a wooden floor can be done using expanded clay. It is a free-flowing material characterized by a porous structure. The heat insulator is produced by firing slate or clay in a special furnace.

Expanded clay insulation for the floor

Expanded clay is a durable and environmentally friendly material. It is characterized by high levels of sound insulation, fire and frost resistance. But expanded clay has one drawback - after a while it becomes too dense due to its own weight and loses its thermal insulation qualities.

This material for floor insulation is produced in the form of rolls. Received on the basis of polyethylene foam, which is covered on top aluminum foil... The thickness of the material is 3-10 mm.

Penofol insulation for floor

But despite this, it perfectly conducts thermal energy and does not need to install an auxiliary vapor barrier. But penofol has a number of disadvantages, including susceptibility to rust and loss of strength.

This heat insulator today enjoys a wide range of applications due to its versatility. Izolon is an elastic-type polyethylene foam, which has a cellular structure, where each cell is closed. It can be obtained in various densities and thicknesses, which once again confirms its versatility.

Insulation isolon for the floor

How to make insulation

The most effective and reliable way of installing a heat insulator from the bottom of the floor is laying on logs - transverse beams, on which the floor covering will be concentrated.

The insulation process is not difficult if you follow the following procedure:

Fix the beams to the foundation with a step of 1-1, 2 m.
Fix chipboard or thick plywood on the boards. Use self-tapping screws for fastening. This stage is important for the installation of the thermal insulation layer.
Place the selected heat insulator on the surface between the beams. The thickness of the layer to be laid can be different, so the dimensions of the transverse logs must be taken into account.
Lay a layer of waterproofing on top of the insulation. Most often, plastic wrap is used. This does not always need to be done, since there are a number of heaters that have elevated level moisture resistance.
At the final stage of installation, a wooden covering is installed. It can be old or new material.

On video insulation floors in a wooden house from below with penofol:

How to insulate from the basement

It is extremely necessary to insulate the basement in a private house. Thanks to this, it will be possible not only to reduce heat loss, but also to protect the house from dampness and destruction in the future. For thermal insulation work, you can use penoizol, polystyrene, but mineral wool can be used to seal the floor from the basement side. With the help of foam, the floors and walls of the basement are insulated.

The first step is to prepare the surface. And to do this, remove all debris and dirt, walk with an antiseptic and a primer. This will protect the surface from rotting, and will also make the material adhere more firmly to the surface. Fastening a heat insulator is a simple matter that even a beginner can handle. You need to apply glue to the surface of the heat insulator, and then immediately apply it to the ceiling.

On the video floor insulation in a wooden house from the basement:

Floor insulation from below in a private house is a necessary measure to create a comfortable and warm environment. The main thing in this matter is to choose the right thermal insulation material. And although the choice is very wide today, you need to choose the insulation that will be convenient in terms of installation, suit your operating conditions and become reliable protection from heat loss.

Now on the building materials market there are a large number of insulation materials of various efficiency. Penofol is one of the modern heat insulators. This material is great for light thermal insulation throughout the house, you can also insulate the floor with foam foam.

The special production technology endows this material with high thermal insulation properties and other characteristics. Overview of properties, scope and technology of insulation different surfaces this material will be discussed in this article.

Overview of penofol properties

Penofol is a material made of polyethylene by foaming with special reagents. This polyethylene foam is applied to a foil base, to which it adheres securely. The foil base greatly enhances the thermal insulation properties of the material by reflecting heat waves into the room.

Therefore, penofol belongs to the class of reflective thermal insulation. This foil insulation has the following performance characteristics:

Advice! There are several classes of products: A, B and C. Class A insulation has foil on one side, and B series material has two. Insulation class C on one side has a foil base, and on the other - an adhesive layer, which makes it easier to install in inconvenient areas.

Application area

Penofol has versatility: it is used for insulation and vapor barrier not only of residential premises, but also of industrial facilities. That's far from full list where this material is used:

Ceiling slabs.
Wall insulation.
Waterproofing and insulation of floors.
Arrangement of warm balconies and loggias.
Thermal insulation of air ducts and technical pipelines.
Application in the automotive industry for thermal insulation of bodies.

As you can see, the list of applications is quite extensive. We will consider where you can use penofol with your own hands - a home area of application.

Penofol application

Even for household needs, this versatile material is used quite extensively. Let's consider the main directions.

Thermal insulation of wooden floors

Most often, the floors in a wooden house are insulated with penofol. This process is absolutely simple, you can easily do it yourself, just stick to this technology:

It is best to remove the old boards and lay several layers of foam foam between the logs. In this case, all layers of material must be laid with a foil base inside the room. Then old boards are laid in place or a sheet of plywood is stuffed.
Another way is to lay the heat insulator on top of the wood flooring. One layer of insulation is used, while the laying is done end-to-end, and the seams must be glued with aluminum tape. Then plywood sheets are laid on the laid heat-insulating layer and screwed to the wooden base with self-tapping screws.

Advice! It is impossible to fix penofol to a wooden base mechanically, for example, with staples. If there is a need to fix the insulation, it is better to treat it with glue or use an adhesive-based material.

Thermal insulation of concrete floors

As a rule, penofol for insulation of concrete floors in a house or on a balcony is used in conjunction with other types of thermal insulation materials. The technology of work in this case is as follows:

The use of penofol in the underfloor heating system

The use of penofol is very common when arranging a system of underfloor heating, both in a private house and in an apartment or on a balcony. The use of this reflective material increases the heat transfer of the entire system by 15–20%, which is a significant saving at the current cost of energy carriers. Penofol is used when installing warm floors using the following technology:

After the main insulation has been laid, foil material is mounted on it.
In this case, the general rule is observed: installation is carried out end-to-end, the seams are sealed with aluminum tape.
For this option, the one-sided option is usually used. If you need to fix the reflective layer, you can use foam foam with an adhesive base.
Then an electrical cable or a water circuit pipe system is mounted on the foil.

Advice! You can cover the heating elements of the underfloor heating system not only with boards or plywood, but also fill in with a cement screed. Foil base of penofol is resistant to various aggressive operating conditions.

Having studied the properties and familiarized yourself in more detail with such a material as foil-clad penofol, it is easy to agree with the opinion of professionals that this material is an excellent addition to existing insulation technologies. In addition, this insulation can be used as an independent heat insulator.

The problem of cold floors is relevant in Russia, partly due to the climate. Sometimes this question arises because of the poor quality work of the builders. Nowadays, the building materials market is filled with abundance various heaters... One of these heat insulators is penofol. This material has a wide range of applications and is one of the most modern. Insulation of the floor with foam foam will be an excellent solution to the problems associated with cold flooring.

Specifications

This material surprises with its field of application. They can insulate absolutely the whole house. This coating is made of polyethylene. The production technology consists in the fact that polyethylene is coated with special reagents that are foamed. The mixture is applied to a foil base. The coating hardens, providing a secure grip.

The foil backing only enhances the thermal insulation. This process occurs due to the fact that heat waves are reflected inside the building.

The most important characteristics:

Penofol is small in thickness. It has high thermal insulation values. The material is great for insulating small rooms in which it is impossible to put a bulky layer of heat-insulating material.
Distinctive feature penofol is its versatility. It is widely used as a waterproofing material. Also suitable for vapor control.
It combines well with other materials, even enhances their properties.
This product is produced according to the most modern technologies... The material has a long service life. In the manufacture, they do not use various harmful additives... The product is environmentally friendly and does not harm human health.
Possesses good resistance to various weather factors. Can be used for low temperatures... The lowest operating temperature is minus 55 degrees. Penofol will be difficult to melt, even at a temperature of +110 degrees.
Insulation of the floor with penofol passes without difficulty. The material is easy to assemble. The prices are pleasantly surprising.

What class of insulation to take?

It is worth paying attention to the class of the product before buying. Penofol is divided into three classes: A, B, C. The difference between them is on which side they have the foil. For material of category "A" it is provided only on one side. The class differs from others by the presence of foil on both sides. Penofol of the third category has a peculiarity: the presence of an adhesive layer on one side, and foil on the other. It is most convenient for them to carry out the installation of the structure in difficult areas.

Where is Penofol used?

This material is good for use in the insulation of premises, as well as for the implementation of vapor barrier. Often there is floor insulation with penofol in a wooden house. After finishing the work, the heat is reliably trapped in the room, ensuring a cozy environment. In multi-storey buildings, floor insulation on the loggia with penofol is often found. It is appropriate to use it when they combine a loggia with a living room and want to achieve the effect of a warm floor throughout the apartment.

In addition to wall insulation, penofol is also used to equip thermal insulation in the duct. The material is suitable for work in pipelines. It is even used in the automotive industry, at the stage of thermal insulation of the car body.

How can a wooden floor be insulated with penofol?

Older private houses usually have wooden floors. Over time, they begin to retain heat poorly, it becomes cold in the room. It is especially hard for residents in the autumn and winter seasons... There is a simple method on how to correct the current situation with the floor. It is possible to insulate a wooden floor with penofol without opening. The thermal insulation material is placed on top. It turns out that the layer is on top of the wooden floor. It is placed end to end. It is important not to forget that the seams must be sealed with special aluminum tape.

The resulting layer is covered with plywood sheets. The thermal insulation is attached to the wood base with self-tapping screws.

Warming of a wooden floor with foam foam from below occurs by raising the upper boards. It is preferable to remove the old covering from the boards and put several layers of covering between the logs. The material must be laid with foil down. After that, the old coating is returned to its place.

Thermal insulation of the floor from below with penofol is a convenient way to work with this material. The floors will definitely get warmer.

What is the best way to fix the material?

Do not use staples when attaching penofol to a wooden covering. The mechanical method in this case is not the best solution. If the coating needs to be fixed, then it is worth using glue or special self-adhesive material.

Using penofol on concrete floors

Floor insulation in a private house with penofol is widely used even on a concrete base.

To get high-quality coverage, you need to do the work consistently:

The concrete pavement is leveled. It must be cleaned of all kinds of contamination. Better to use Some people prefer a self-leveling mixture.
Penofol is placed on the resulting flat surface. It is recommended to choose class "B", where there is foil on each side. It is necessary to make high-quality joints, and then close them with aluminum tape.
The next step in warming the floor with penofol will be the installation of a frame made of wood. The cross-section of the timber used must be at least 5.5 centimeters
Insulation is selected, which is placed in wooden frame... It must be compressed with mineral wool. The use of polystyrene is possible.
Next, the second layer of penofol is laid. For this stage, you can take the class "A" of the desired product, which has a foil on only one side.
The final stage of insulation will be the installation of boards, which are stacked on top of wooden logs.

Pros of using penofol

It is important to know all the positive aspects of using this material:

Did you like the article? Share it

Print article