Recommendations of specialists in working with mineral wool insulation. Cutting mineral wool than and how to cut mineral wool in roll and plates than cutting the insulation of mineral wool

There are a lot of questions about what and how to cut mineral wool. Especially in those who are going to build housing independently (for example, a frame, which involves the assembly on its own). After all, in its structure, this material is fibrous, moreover, having a certain thickness. Ordinary cutlery knives or scissors designed to cut cardboard or dense tissues, do not fit at all.

However, before starting the cutting of mineral wool, it is important to deliver it to the place of construction. After all, otherwise, the material brought to the state of marriage will not have to cut, but simply change to a new one. And this is additional costs.

Science is not good, but very important. So:

plates and mats are transported in a horizontal position;
the truck must be necessarily a protective awning;
transportation is carried out only in packed form;
when transporting, loading and unloading work, it is important not to compress the insulation too much;
unpack the Minvatu immediately before starting work on insulation.

How will we cut

You can do with different devices, depending on the thickness of the mineral wool.

Thin materials (no more than 50 mm):

Thicker and thick materials:

special knives with a length of about 300 mm. Often they are offered manufacturers of insulation materials. Such a tool has a teeth of different sizes for cutting mineral wool of different thickness and density;
saws with undiluted teeth;
hoven for metal;
cutting machines. Used when cutting elements of complex shape. However, for independent construction of your own home, that is, for one-time use, it is impractical to acquire such expensive equipment - you will have to adapt to the possibilities of other tools.

How to cut

for independent constructionWhen working there is no sufficient experience, it is advisable to consult with experts before starting cutting, especially if there is a piece of pieces of complicated form. This will help prevent unjustified consumption of insulation;
the cutting tool must be well sharpened so that the mineral wool does not rush to fibers and less "dust";
when cutting the insulation, it should be borne in mind that to ensure the tight overlap of the mining of the insulated space, it is necessary to leave the allowances of about 2 cm;
cutting the roll minvatu better before its unfolding;
mineral wool slabs must be taken from packaging and cut one;
it is not recommended to cut the mineral wool "OPRO" - immediately for the entire work. This increases the risk of random damage to its shape with additional shocking from place to place or folding pieces to each other.

It is important to create a safe working conditions.

It is really important. As in any case, compliance with uncomplicated safety will help maintain health, work in optimal terms and at a high quality level. What to pay attention to:

cutting the insulation is better in non-fit weather, because it is necessary to put on a protective suit from dense matter, which will prevent the skin contact with the fibers of Minvati and its irritation;
special gloves are worn to protect hands - with silicone or rubber spraying on the palms;
for eye protection, there will be special glasses;
respiratory authorities will protect the respirator.

Such measures must be observed, since when cutting insulation, particles of material rise from under the knives in the air. Which may fall into the eyes, respiratory tract, and also cause skin irritation.

In addition, it is important to remember:

when working with this type of insulation, it is necessary to periodically arouse a break, during which to air the room;
it is necessary to shift the cut pieces carefully, without throwing to reduce the amount of fibrous suspension in the air;
at the construction site at this time there should be no children, even in the means of protection.

As can be seen from the foregoing, there is nothing superpower in cutting the minvati. Under the observance of the designated rules, perform work qualitatively and safely will not be difficult.

There are varieties of Minvati: glass and basalt. The latter produces from rock - Gabbro-Basalt. In the manufacture of carbonates add to it, which allows you to adjust its acidity.

Basalt Vata.

Such a factor is like acidity, has great importance for mineral wool. The greater acidity is the wool, the less she is sensitive to water.

The type of wool in which acidity is greater, is considered more durable. Synthetic, bitumen or composite clays add to the form of form. Glassovat does not require special explanations, its name speaks for itself.

This mineral composition, for the manufacture of which, the same components are used as for glass (it can be broken glass).

Two types of wat differ among themselves by properties. Glasswater is usually thicker at 15 microns (from 3 microns), but basalt wool is several times longer.

It suggests a conclusion: glass gambler is a more durable material that can withstand more aggressive environment factors than basalt. Also, the glass wool does not burn.

The insulation of the roofing mineral wool is difficult when working on the rods with a rafting design. In such cases, it is better to use dense cotton wool. So that the moisture does not accumulate under the roof, you need to use cellulose wool.

Tools for cutting

Mineral insulation has a fibrous structure, a violation of which leads to a decrease in thermal insulation properties. This makes an ineffective application for its cutting scissors for dense tissues or cardboard, as well as dining or stationery knives. Therefore, the answer to the question than cutting mineral wators is correct, without disturbing its structure, will be useful for beginner builders.

How will we cut

In an industrial scale for cutting mineral insulation, special machine equipment is used. Consider how to cut the insulation of mineral wool on their own at home.

Often for cutting Minvati use mounting knife. But he has one drawback - a short blade that is not suitable for working with thick plates of the insulation. In addition, the blade is quickly blown up and requires replacement.

Sometimes there is a special wooden hacksaw or metal, and the folk craftsmen found than to cut minvat at home - a kitchen-jazred knife for cutting bread.

But still, choosing than cuting stone, glass or slag cotton wool, it is better to use special tools.

Science is not good, but very important. So:

plates and mats are transported in a horizontal position;
the truck must be necessarily a protective awning;
transportation is carried out only in packed form;
when transporting, loading and unloading work, it is important not to compress the insulation too much;
unpack the Minvatu immediately before starting work on insulation.

How will we cut

You can do with different devices, depending on the thickness of the mineral wool.

Thin materials (no more than 50 mm):

Thicker and thick materials:

special knives with a length of about 300 mm. Often they are offered manufacturers of insulation materials. Such a tool has a teeth of different sizes for cutting mineral wool of different thickness and density;
saws with undiluted teeth;
hoven for metal;
cutting machines. Used when cutting elements of complex shape. However, for independent construction of your own home, that is, for one-time use, it is impractical to acquire such expensive equipment - you will have to adapt to the possibilities of other tools.

How to cut

with independent construction, when working there is no sufficient experience, it is advisable to consult with specialists before starting cutting with specialists, especially if the presence of pieces of complex shape is assumed. This will help prevent unjustified consumption of insulation;
the cutting tool must be well sharpened so that the mineral wool does not rush to fibers and less "dust";
when cutting the insulation, it should be borne in mind that to ensure the tight overlap of the mining of the insulated space, it is necessary to leave the allowances of about 2 cm;
cutting the roll minvatu better before its unfolding;
mineral wool slabs must be taken from packaging and cut one;
it is not recommended to cut the mineral wool "OPRO" - immediately for the entire work. This increases the risk of random damage to its shape with additional shocking from place to place or folding pieces to each other.

It is really important. As in any case, compliance with uncomplicated safety will help maintain health, work in optimal terms and at a high quality level. What to pay attention to:

cutting the insulation is better in non-fit weather, because it is necessary to put on a protective suit from dense matter, which will prevent the skin contact with the fibers of Minvati and its irritation;
special gloves are worn to protect hands - with silicone or rubber spraying on the palms;
for eye protection, there will be special glasses;
respiratory authorities will protect the respirator.

Such measures must be observed, since when cutting insulation, particles of material rise from under the knives in the air. Which may fall into the eyes, respiratory tract, and also cause skin irritation.

In addition, it is important to remember:

when working with this type of insulation, it is necessary to periodically arouse a break, during which to air the room;
it is necessary to shift the cut pieces carefully, without throwing to reduce the amount of fibrous suspension in the air;
at the construction site at this time there should be no children, even in the means of protection.

As can be seen from the foregoing, there is nothing superpower in cutting the minvati. Under the observance of the designated rules, perform work qualitatively and safely will not be difficult.

To achieve the necessary heat insulation flat roofMineral wool plates sometimes fit into two layers.

Soundproofing wooden overlap Can provide granulated mineral wool.

Practical plates with ventilation grooves.

Plates with variable cross section apply to the purpose of making the roof of the dock for water flow.

Two-layer insulation of mineral wool is also used on the attackers operated.

The lamella mineral wool plate is used primarily for the insulation of walls in the insulation systems of the "wet" type.

If the building is single-storey, in a three-layer wall you can not leave the ventilation slot.

Intermittent lines deposited on the surface of mineral wool products significantly simplify the process of cutting and measuring.

Mineral wool slabs must be exactly shorted so that after laying between them, the gaps performing the role of "cold bridges" are not formed.

Soft, elastic mineral wool is great for soundproofing frameless walls and insulation walls from the inside.

How many insulation from mineral wool in one pack?

The mats turn into rolls, the plates are packaged in packs of several pieces depending on the thickness of the plate. Usually one package occupies about 0.3-0.4 m 3 and weighs from 10 to 70 kg. To find out how many packs are needed to perform insulation, it is enough to go online to the manufacturer's website or look into its directory: there are tables with the calculation for plates and mats of all types and sizes.

Insulation - under the knife

Insulation from mineral wool cut a long sharp knife or hacksaw. It is necessary to leave the allowance: about 0.5 cm - in plates and 1-2 cm - in mats, so that after mounting the material tightly filled the insulated space. Rolled insulation is easier to cut before turning it out than after. Plates are better cut on one, each separately.

Transportation and storage

Heaters from mineral wool must be transported in closed cars. They must be well protected from atmospheric precipitation and are well fixed during transportation. Mats and felt from mineral wool during transportation and storage are in packages in a compressed state, which significantly reduces the volume occupied by them. It is necessary to protect mineral wool from moisture, so it is better to store it in dry, indoor rooms. Plates are stacked alone on another in the stacks not higher than 2 m, and mats and rolls are installed vertically in one row. It should be avoided by rigid plates and categorically impossible to walk on an unfolded soft mineral wool - it can be easily damaged.

It's important to know

Security Means when working with mineral wool

Mineral wool is a dust material material. Therefore, during its cutting and installation, it is necessary:

put on mittens and protective clothing;
during styling plates, put on safety glasses and mask on the mouth and nose;
provide good ventilation in the workplace;
after the end of work with mineral wool thoroughly wash your hands and remove dust from clothes.

svestnik.kz.

Scheme of basalt insulation.

heat insulation and hydrophobization. The first parameter is from 0.042 to 0.048 W / MK. Approximately the same characteristics have other known insulating materials (for example, polystyrene foam, polyurethane foam). Minvata is not able to accumulate moisture (hygroscopicity - less than 1%), which makes its weight unchanged. A distinctive feature Park permeability can be called, which guarantees insulation and at the same time intensive moisture exchange between the external environment and the walls of the building;

For cutting basalt insulation, it is best to use a mounting knife.

Insulation scheme using basalt wool.

According to the site: http://1poteply.ru

fix-Builder.ru.

How will we cut

In an industrial scale for cutting mineral insulation, special machine equipment is used. Consider how to cut the insulation of mineral wool on their own at home.

Sometimes there is a special wooden hacksaw or metal, and the folk craftsmen found than to cut minvat at home - a kitchen-jazred knife for cutting bread.

Knife with stainless steel blade

A knife for cutting insulation with a long stainless steel long blade suitable for working with Minvata of any thickness. For the cutting of the insulation of different stiffness from each side of the larger and smaller teeth are located. Such a blade is easily included in the stove crowd, allowing you to make even curly cuts due to the sharp tip.

Knife with carbon steel blade

Cutting knife Minvati with carbon steel blade has high quality cutting and easy sharpening. However, it requires a more thorough care compared to the stainless steel blade, as it is subject to rust. It must be wiped out dry after each use and lubricate.

For example: MORA knife for cutting Minvati

The Swedish firm Mora produces tools for cutting mineral insulation. Knife with a blade stainless steel is used for cutting stone and glass mineral wool. The blade is made of a special cold-rolled stainless steel and has a toothed sharpening. Ergonomic and comfortable plastic handle is suitable for working in gloves. His characteristics:

total length - 500 mm;
blades Length - 335 mm;
blade thickness - 1 mm;
weight - 0.238 kg.

Knife with a blade carbon steel is used for cutting mineral insulation of different types. It has a smooth, made of high-quality carbon steel blade with a length of 350 mm. The plastic handle provides good grip in working gloves.

How to cut mineral wool

Mineral wool in structure - fiber, and accordingly, when it is looked into the air, small particles of these fibers fall into the air. So that they do not fall into the respiratory tract and on the skin, it is important to create a safe working conditions:

provide good ventilation in the work room;
use overalls and protective equipment - overalls, gloves, mask or respirator, safety glasses;
immediately after the end of the work, clean the hands thoroughly with cold water, and then face.

To minimize the amount of harmful dust in the air, the cutting of mineral wool should be carried out with tools with a well-sharpened, acute working edge. Better cut across fibers.

To obtain strips of the same width mineral insulationRecommended in rolls is recommended to first cut directly in a roll without turning, and mineral wool slabs cut one.

To ensure smooth and accurate cuts, you must first place the material or cut directly on the line.

What to do with trimming and residues of mineral wool

If trimming remains after working with the Minvata, you can use them for insulation, such as a garage or a shed. Some choose such a budgetary version of insulation, so you can sell residues at a low price.

There is also an option for recycling for recycling. In this case, the remnants of mineral wool slabs are crushed with special equipment.

uteplix.com.

Required information for working with mineral wool

The specificity of the mineral wool mounting, its transportation and storage is to provide the conditions necessary for the longest possible preservation of its qualities. Typically, the recommendations are given by manufacturers on a specific brand and type of material, but there are a number of simple universal rules that must be followed when working precisely with mineral wool.

Basalt mineral wool: we transport and stored correctly

Transportation with subsequent storage has its own characteristics, since minvat for insulation is able to quickly absorb moisture from the air. Therefore, it is transported in closed machines with subsequent storage in dry rooms are mandatory condition To prevent the loss of the most important qualities.

Mates should be transported and stored in a compressed form and in packages - this makes it possible to reduce the volume occupied.

Laying the plates should be carried out in the stacks having a height of less than 2 m, roll packages and mats - to be installed in a vertical position.

It is prohibited to walk in the unfolded and non-packing mineral wool because it may be damaged.

Cutting Minvati

Today you can buy minvatu both in rolls and plates and mats. To fit it to the desired dimensions, you should use a sharp long knife or hacksaw, leaving the allowances at the edges (in 1-2 cm mats, in plates of 0.5 cm). Punches are needed to fully fill the sliced \u200b\u200bpiece of mineral wool insulated space.

Minvatu is easier to cut in rolls before turning it, and the plates are better cut separately.

Number of insulation

Packaging Minvata is made by folding the mats of the same size into rolls, the plates in the pack can be different quantities depending on their thickness. On average, the package has a volume of 0.3-0.4 m 3, its weight is 12-70 kg.

To calculate the number of packs of such a insulation, you can use the directories represented by manufacturers on the Internet. There are tables on the most accurate calculation required material (and in the form of plates, and in the form of mats of various sizes).

Safety when working with mineral wool

It should be known that there is a special safety technique in the process of working with this material, which prevents its negative impact on human health: basalt mineral wool highlights dust, extremely dangerous for people working with it.

When cutting and further installing this insulation, the following rules should be followed:

use protective clothing from dense fabric and building mittens;
when laying plates on the eyes to wear special glasses, on the face - a protective mask;
after work, be sure to wash your hands, change clothes or clean it thoroughly.

Good ventilation in the workplace allows you to avoid the negative effect of dust from mineral wool on human health.

Since the technical characteristics of mineral wool from different manufacturers can differ significantly, there are several practical Soviets, giving the opportunity for any initial data minvati to get high-quality insulation.

These include:

When the flat roof is insulated with a mineral wool in two layers.
To increase the degree of sound insulation, it is recommended to use granular mineral wool.
Plates having ventilation grooves are the greatest practicality.
When erecting a single-storey building, a three-layer wall may not have a ventilation gap.
Operated attics are most often insulated with two layers of mineral wool.
The exact cutting of the plates of Minvata guarantees the absence of cracks and the likelihood of "cold beats".

The presence of intermittent lines insulation plates facilitates the process of measuring them and subsequent cutting.

www.allremont59.ru.

Operating features of basalt wool

For the manufacture use basalt and other breeds of its group. Take fine fibers, the melt of which is added limestone (10-15%) or the mixture. Additives increase material resistance to exposure to excessively high temperatures, aggressive environment. As a result, a heater appeared, which has sufficiently high operational characteristics:

heat insulation and hydrophobization. The first parameter is from 0.042 to 0.048 W / MK. Approximately the same characteristics have other known insulating materials (for example, polystyrene foam, polyurethane foam). Minvata is not able to accumulate moisture (hygroscopicity - less than 1%), which makes its weight unchanged. A distinctive feature can be called vapor permeability, which guarantees insulation and at the same time intense moisture exchange between the external environment and walls of the building;
density, strength. The insulation has sufficient density (from 30 to 100 kg / cubic meters), which guarantees high thermal insulation properties with optimal strength. The stiffness of the material is ensured by the direction of fibers; They are located in the horizontal and vertical direction;
soundproofing. Good characteristics Noise protection is achieved due to the porous wool structure;
resistance to aggressive environment. Wat "indifferent" to alkali, acids; Does not rot, the fungus is not amazed. Rodents also bypass this insulation side;
fire resistance. Basalt wool is able to withstand heating to + 700 ° C. It protects the design from complete destruction during the fire and gives time for the evacuation of residents;
safety for health. During production, resins containing harmful substances (formaldehyde, phenol) are used. However, the observance of technology involves their introduction to the insulation in a chemically related state. Substances become completely neutral with respect to the environment and do not pose a danger to humans.

However, if the Minvata is made by the handicraft method, then there is a danger to health. Therefore, it is more expedient to acquire material from proven manufacturers.

Technology insulation exterior walls

The insulation of the facade of cotton is made using glue and special dowels with a big hat. The material is supplied in the form of rolls, plates that cut into pieces of the desired size. Also need a metal profile or wooden barsThere will be a heater between which the insulation will be fixed. You can cut the material with an ordinary sharp knife. However, if the density is high enough (80-100 kg / cubic meters. M), you will have to cut with a tree hacksaw. The facade insulation is performed in the following order:

a vapor insulation film is mounted on the wall; It should be under the plates of Minvati to produce moisture out and do not let cold air inside the house;
next on the wall in a vertical position, wooden bars or metal profile are attached. Their width must correspond to the thickness of the insulation. The interval between the racks should be so that the Minvat is inserted with a little effort;
the mounting of the insulation is carried out by means of glue and special dowels, if the wall is stone, or through nails (self-tapping screws) with large washers, if the surface is wooden. Per quarter. m required 5-6 pieces;
on the fixed basalt cotton, it is recommended to lay the windproof membrane, whose joints are sampled with a sticky ribbon;
to ensure ventilation under the subsequent decorative coating, it is desirable for the plates to make a controller from wooden bars or metal profile 10-15 mm high.

This technology is suitable when the insulation of the facade under siding is required. However, in some cases, for example, in multi-storey buildingsIt is required to more rigidly fasten the insulation. In this case, it is additionally fixed on the surface with glue, simultaneously reinforcement. This operation strengthens the design, extinguishes the thermal expansion of the material that can contribute to the formation of cracks and the increase in thermal conductivity.

Reinforcement is performed on the already installed insulation using a special glue and grid, resistant to alkali. First, glue is applied, on which the grid is stacked, then it is covered by another layer of adhesive composition. The final decorative finish can be produced using facade paint, decorative plaster.

FEATURES OF MAINTAGE OF MINERAL WWATER INTERAGE

The manufacturer releases material in the form of rolls or plates. Mineral wool insulation is used for walls, roofing or interior partitions. In the latter case, mainly to achieve good sound insulation parameters of the structure. When installing, the requirements for the insulation that must be known when buying are taken into account:

installation in the inclined roof involves the use of wool with a density of at least 30-40 kg / cube. m, otherwise the material simply seeks with time. The recommended thickness is 15 cm;
arrangement of partitions should be performed using minvati density 50 kg / cube. m. Elevated density is needed to provide high-quality insulation from noise;
bearing walls are best insulated outside, because This will result in a dew point where condensate will be formed, on the outside of the wall. The density of the material must be at least 80 kg / cube. m, and thickness - 10 cm.

Modern mineral wool is a high-quality insulation, tested for not one decade. The current technologies made this material completely safe during installation and operation, and specifications, in combination with the cost, leave behind the nearest competitors.

1potePly.ru.

What types of mineral wool?

Mineral wool is customary to classify the material principle from which it is made. It follows this conclusion that the Minvat made from different source materials differs in the structure - fibers, and, accordingly, in the type of cutting. So there are the following types of mineral watments:

Glass minvat. Consists of glass melts.
Stone Minvat. It is most often made of various melts of rocks.
Slag of Minvat. The source material is a domain slag.

In fact, attention should be paid to the fact that sometimes mineral wool is harmful. This is due to the fact that it has the content of dust and phenol formaldehyde resins. Therefore, it is necessary to relate to this material selectively, although minvatu and cannot be attributed to carcinogens for a person.

How to cut mineral wool:

Cutting mineral wool can be carried out both independently at home and using various equipment. Equipment for cutting mineral wool slabs can be different. The question is scale. Machine for cutting mineral wool is suitable for serious and large scale - for enterprises, manufacturers, etc. But the knife cutting knife will become an indispensable assistant in cutting insulating materials at home.

It is important that the cutting of mineral wool does not damage the fibers, so the equipment must be selected carefully. The slice should be smooth. At home, cutting rolls of mineral wool (the so-called "50-ki") will be convenient with a knife for cutting, but for large ("100-ki), a special hacksaw for insulation will be comfortable. At the beginning of its price may seem unreasonably high, but it is worth it. It is important that work is done, as follows. A coffee cutting of mineral wool may be convenient. The cutting machine of mineral wool can easily cope with a similar task.

How to cut mineral wool:

If you do not know how to cut mineral wool at home, we can advise you excellent tools best suitable for cutting Minvati.

So, for cutting mineral wool It is best for a good, sharp stationery knife or hacksaw for metal, carefully cut the mineral wool in the right directions, for greater accuracy, you can shoot the line with a pencil or cut directly in a ruler. The process of cutting mineral wool is similar to the cutting of the paraclone, only one must make a little more effort, slightly stronger on the tool for cutting minvati.

What to do with trimming and residues of mineral wool.

One of the solutions can pleasantly please many (especially firms and large manufacturers). Cutting mineral wool is not useless and can be useful to those who decide to warm their walls and the ceiling in budget variant. Trimming can be sold at a low price, and the demand for goods will be very high.

Recycling of mineral wool slabs is also possible. In this case, with the help of special equipment, the remains of mineral wool slabs are grinding to the granules with the possibility of further secondary use.

bazaltovaya-vata.ru.

Today, a method has been developed for obtaining a special type of insulation - stone wool produced from basalt. Twenty years ago, such a mineral wool was used exclusively for the needs of the defense industry, and now this insulation is widely used for thermal insulation of any buildings.

Mineral wool contains such harmful to ambient Components, such as acrylic and phenol formaldehyde resins. It consists only of natural binders, so it is safe for humans. This thermal insulation material not only preserves heat, but also allows you to create a reliable sound insulation of the premises. Minvata from Basalt is becoming more popular and has already been tested by time, but people still have a lot of questions regarding technological moments on which they will try to focus on this article.

How to fix minvatu?

In this case, it all depends on the type of insulation and on the type of construction, which is mounted thermal insulation. Light stamps Minvati are installed in the skeleton structures of the rosper. Rigid mineral wool plates are attached to special dowels or fixed using special adhesive compositions.

When attaching the gun, the mineral wool is laid very tight in the pre-assembled from the rails and bars wooden frame. The thickness of the frame must correspond to the thickness of the insulation. The interval is withstanding the interval less minvate width by 1.5-2 cm, which does not allow the material to slide during operation. The mats are mounted, starting from the bottom of the structure, and rolls are on top. At the same time, one-piece pieces are stacked primarily, and free space, for example, near the doors or windows, is filled later.

Mineral wool high density is often mounted without intermediate / supporting bars. It is fully cooked for the frame and pressed without the gap to carrier design, after which it is fixed with a wide hat for the safety net, that is, the so-called "plate" dowels. In such a system, the framework elements are located on top of the insulation layer and put it to the wall to the wall, in addition, the brackets that pass through mats are helping to keep the insulation.

When using the fastened heat insulation method (wet mode), the frameworks are not used at all, therefore, glue compositions should be used as an attachment. In this case, you will have to get a dry mixture, but necessarily intended for gluing a mineral wool insulation. Recently, polyurethane glue in cylinders becomes increasingly popular, which allows you to mount a dense minvatu to any bases, including wooden, metal, polymeric. This technology also involves the use of dish dowels. In more detail, the peculiarities of gluing insulation, we considered in articles on adhesive compositions and wet insulation of the facade.

What is better to cut mineral wool?

Cutting the heat-insulating materials from the stone wool is recommended for hacksaw on the metal either specifically for this designed sharp long knife, the blade of which is gear. In any case, the snap must be well sharpened so that the fibers crashed as little as possible. Many firms producing insulation offer their buyers also cutting tools: knives about 300 mm long, as well as saws with teeth without divorce, about 60 cm longs and a wavy edge. Thin soft plates and mats (50 mm) can be cut in a conventional mounting knife.

Minvatu produced in rolls, cutting best before their unfolding. And mineral wool slabs get out of packs and cut one. It should be remembered that when installing thermal insulation, the insulation must fill in all the insulating space is very tight, so before cutting should be left input: for plates - 0.5 cm; And for mats - about 1-2 cm.

Is it true that Minvatu need to be protected from moisture and wind?

During the operation of the warmed buildings, their walls, roof and other structures should be protected from elevated atmospheric humidity and from purging with strong winds. Therefore, the mineral wool insulation after installation from the outer side is covered with cloths from vapor-permeable moisture and windproof membrane. This makes it possible to prevent the penetration of cold wind and drops of oblique rain into the thickness of the wall. At the same time, water vapors from the inner space, through diffusion passing through the walls, will be able to go out without obstacles.

The undoubted advantage of mineral wool is its vapor permeability, and this property should be used to the maximum. When installing mineral wool insulation materials between carrier wall And the insulation is not necessary to lay vaporizolation, since such sealing will negatively affect the climate inside the building. The absence of artificial ventilation in this case will increase the humidity and formation of condensate, which, in turn, will cause the formation of mold and fungi.

The vapor barrier film is necessarily used when installing thermal insulation indoors - in this case it is installed with a warm side of mineral wool. This allows protecting the insulation from water vapor from the premises. A reinforced polyethylene can be used as a vaporizolation, which is placed between the insulation and facing.

If the design allows, between the insulation and outdoor decoration Be sure to provide a ventilated air gap. This will help preserve mineral wool in a dry state, while not reducing the vapor permeability of the building.

What should I do if you need to use a wool layer at 15 or 20 cm, and the insulation is supplied with a thickness of 5 or 10 cm?

There is nothing difficult here. It is necessary to calculate the necessary thickness of the formulas or using an online calculator (we talked about this last article), and then you can easily dial a warming barrier from several layers. In addition, this method makes it easy to eliminate the problem of formation of cold bridges and blowing the joints. To do this, when installing the insulation, the leafs of the outer and inner layers should shift relative to each other by 20-30 mm in order to reliably block the seams.

Is it necessary to use protection tools? What kind?

Minvat is considered safe thermal insulation material, both during operation and when installed. However, with long work with this insulation, it is better to protect themselves to secure, using individual defense items.

Stone wool, compared to glass, is much more convenient in operation and safer, but it should still be careful when installing it. It is best to work in non-jarny days in a jumpsuit of dense fabric that closes the whole body from contact with the Minvata. It is not recommended to touch this material with bare hands, for their protection you can use the "Gloves of the Greamer" - tissue with rubber or silicone spraying in the field of palms. It is also necessary to protect the eyes and the hair of the head. To protect the respiratory organs, the respirator is put on.

During the installation of stone wool, it is necessary to arrange a break for the air of the room. Open packs of material it is necessary to shift carefully, not allowing them to fall, so that microparticles did not stand out. At the construction site during the installation of thermal insulation should not be children, as well as not using the means of protecting people.

Are there nuances in transportation and storage?

Mineral wool insulation should be stored in whole packages on a flat dry surface, the height of the stacks should not exceed 2 meters. Stacks are made in closed rooms protected from rain and humidity. If the Minvata is stored on the street, it is necessary to cover it with a polyethylene film or tarpaulter.

The mats and plates of the insulation are transported in a horizontal position in covered trucks. During transport, the insulation must be protected from mechanical damage and atmospheric precipitation. During loading size and transportation too much, the material cannot be squeezed.

Unpacking Minvatu need correctly. For this, the insulation is taken directly from the package immediately before installation, which significantly reduces the risk of damage to thermal insulation. The packaging from the insulation can be used on the construction site during the layout of the Minvati (when it is necessary to protect it from contamination), it is also suitable as bags for the construction trash.

What wool is better?

There is no unambiguous answer to this question, as in different conditions The optimal option will be the material of different types.

Basalt soft wool. Use it where high loads are not assumed. This material can be used for insulation of walls made by frame technology, as well as for the heat insulation of overlaps and roofs. What wool is soft does not mean that its operational characteristics are bad. Just produce it from thin fibers, which ensures the presence of a plurality of cavities in the insulation, in which the air is delayed with heat loss.

Minvat medium hardness (density). It is used mainly to insulate the ventilated facades, where high speed air flows are created in air cavities. It is also used for fire fighting events, sound and thermal insulation of ventilation channels. Mineral wool medium density can be mounted without problems instead of soft basalt wool, but the cost of thermal insulation will be more expensive.

Tough basalt wool. This insulation is used in places where high loads on it are possible. For example, where there is a heat insulation of walls with reinforcement and plastering (wet method) or when creating some types of floors.

Cylindrical insulation for pipes. Usually they are produced with a diameter of more than 50 mm. They are a sloping details that can be deployed and put on a pipe, or two-party models that are connected on the pipe.

Foil basalt wool. This thermal insulation material is characterized not only by low heat transfer, but also reflects heat, directing it inside the premises. Minvata can be covered with a foil from one or from both sides. When laying, the heat insulator is installed with a foil side to a heat source. The scope of this insulation is quite extensive, it is considered a universal material suitable for all methods and types of thermal insulation.

Firmware wool. It is it very strong mats, one side in which they are covered / enhanced by a steel mesh (galvanized, stainless, fire-resistant, acid-resistant). The canvases can be of different thickness, can be used to execute different species Heat insulation. The firmware wool is usually non-combustible, therefore, it can be used to insulate surfaces with elevated temperatures (up to plus 660-700 degrees).

An important technical characteristic of Minvati is its specific density. Insulation, the density of which is up to 75 kg per meter cubic ideal for thermal insulation of planes, where there is no effect of heavy loads, for example, for laying in overlaps in attics and roofing. Basalt Wat N. high density It is often used to wrapping pipes of heat centers, boilers and similar nodes / communications.

Stone wool, the density of which is up to 125 kg per meter cubic keeps the form and is wonderful for the insulation of ceilings, walls inside buildings, various vertical structures. It is used for thermal insulation brick walls, as well as surfaces from foam block or aerated concrete. Minvata of this specific density allows not just to insulate the building, but also to ensure reliable sound insulation.

Basalt wool high density - from 175 to 200 kg per meter cubic is characterized, in addition, increased rigidity, hence the abbreviation in its name (PPH). This insulation is used for thermal insulation initially too cold planes - reinforced concrete, sheet metal. The PPH-200 brand is also suitable for the improvement of additional protection of residential buildings from fire. Only high density minvat can be mounted on the insulation technology of facades with a wet method.

Main characteristics

Mineral wool is one of the best, simple and common materials for insulation and sound insulation of walls and the ceiling today, as well as known in some other applications. In addition, it is easy to fasten, that is, you can independently carry out insulation of the premises.

Many people do not know how to cut mineral wool correctly without disturbing its structure, in this material we will consider all the ways of proper cutting of mineral wool, as well as advise the tools that are best for this.

What types of mineral wool?

Glass minvat. Consists of glass melts.
Stone Minvat. It is most often made of various melts of rocks.
Slag of Minvat. The source material is a domain slag.

How to cut mineral wool:

If you do not know how to cut mineral wool at home, we can advise you excellent tools best suitable for cutting Minvati.

What to do with trimming and residues of mineral wool.

One of the solutions can pleasantly please many (especially firms and large manufacturers). Cutting mineral wool is not useless and can come in handy to those who decide to warm their walls and the ceiling in the budget version. Trimming can be sold at a low price, and the demand for goods will be very high.

Mineral wool is an artificial construction materialwhich is done for heat and sound insulation of residential buildings and industrial premises. The material is not afraid of fire, steady to various weather conditions. For convenience, produced in rolls and mats. It is not enough to buy a heater, it is still important to know how to work with him, this will be discussed below.

Insulation of the attic room effective ways Reduce the body loss as a result of the house needs to be less used, but meaning can be saved on electricity. Mineral wool insulation is a universal version with high technical characteristics for thermal and acoustic characteristics, as well as fire resistance.

The insulation consists of fibers. While working with material in the air, a large number of harmful particles flies. Small dust is dangerous for breathing and human skin. Therefore, when working with it, precautions are observed.

What rules need to be observed:

work in a well-ventilated room.
for work, use personal protective equipment: mask, glasses, respirator.
work in overalls: well-fastened jumpsuit, headdress, construction gloves.
after working, the hands and face are thoroughly wash under cold water. Overalls shake out of dust.

How to cut mineral wool in a roll

To insulate the home of mineral wool, it is cut, the material is crumbling along and across. For each type of cut, there is its own rules, observing which work to make much easier.

Longitudinal material

Mineral wool in rolls are cut in non-unpacked form. The roll is placed on a rigid smooth surface. The roulette is measured by the required length. Put tags in three places in the circle of packaging. Place of cut, for accuracy, wind with molar scotch.

Then take a saw and cut the roll of mineral wool in a circle. After separated the sliced \u200b\u200bpiece removed the packaging film.

Important. The greasy tape is wound on the roll from the opposite side of the workpiece, so that after cutting the remaining part of the roll is not unwound.

Cross cuts

For transverse cutting, the roll of mineral wool is unpacking. Make marking on both sides. Then apply a smooth bar: a ruler, a piece of profile or a bar.

A knife or knife is carried out along the plank. If it did not work out to cut the insulation with one movement, the cut repeat several times. The material is cut to the end so that it does not have to tear, in this case geometry will break. We'll have to equible insulation.

Important. When the insulation is cut, put the board so that the knife does not mess around.

How to cut insulation

In production, the material is cut on machines, special disk saws. In the home conditions, the insulation can be cut out with the help of a stationery knife, saws on wood and special knives for insulation.

Instruments:

Stationery knife Apply only for transverse cut, since he does not big size blades. The cutting part is quickly stupid, because of this often change the blade. Stationery knife is used for cutting large number insulation.
To cut the mineral wool along the roll, use tree saw. Hoven has a long canvas that rolls the roll. The disadvantage is that after such a cut, there are a lot of waste from the insulation. With the thread of the teeth, the hacksaw bursts the pieces of the insulation.
Bread Knife with Long Blade 200 - 300 mm Convenient Tool To cut off the insulation along and across the roll. Blade with cloths easily cut the fibers of the insulation does not leave a lot of waste. The lack of a kitchen knife is that he quickly stupid. If a lot of work, for strong cut The knife will have to be periodically sharpened.
For professional cutting min Wati make special knives . The length of the tool with a handle is 500 mm, the length of the blade is 330 mm. Knives are made of stainless and cold-rolled steel, a special wavy gear sharpening tool allows smoothly cutting material.

The right choice of tools for working and compliance with the recommendations will help make the insulation of the house with a pleasant and useful occupation, which will not bring extra hassle.

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