How Maurylalat is fastened to aerated concrete without armopoyash. How to fix Mauerlat to aerated concrete without armojois? Several cunning councils

When arranging the roof with one or more rods, the need to install the rafter system. However, laying rafters directly on the walls can not - for these purposes, Mauerlat is used, which redistributes the load. If the walls of the building are erected from such a porous material as aerated concrete, to lay the reinforcing belt under Maularlate is not always possible. In this article, we will tell about how to fix Mauerlat to aerated concrete without armopoyash using various methods, describe in detail the technology and the subtleties of this process.

What do you need Mauerlat

So, Mauerlat is a very important element of the design that takes the main weight of the rafter system on itself and evenly distributes it throughout the plane of the bearing walls. As a rule, it is made of material similar to the rafters - most often a wooden bar. However, for a steel rafter system, Maurylalat from a diodeava or a channel will be required.

For the manufacture of Maurolalat, such materials are used:

Brux from a tree with a cross section of 100x100 mm, 150x150 mm, as well as 200х300 mm. In this case, it is possible to take wood of hardwood, which passed antiseptic processing. The bar is stacked around the perimeter of the building. Docking logs with a lock method or with nails. Wooden frames For the roofs, they are most often elected in private construction.
Rolling profiles - I-beams in the form of the letter H or channels in the form of the letter n are used slightly. In this case, the height of steel profiles can vary within 7-12 cm.

Whatever material you choose, it is performed on the surface of the walls. Mounting methods Mauerlat to aerated concrete can be several. After fixing this item, the installation of rafter feet is made. It is worth noting that Mauerlat not only redistributes the load, but also prevents the sling system in the horizontal plane.

Since aerated concrete is a fairly fragile material and poorly tolerates an increased load, many masters prefer to pour the reinforcing belt on the upper edge of the walls. However, to reduce costs and employment costs, there are some methods, how to fix Mauerlat without Armopoyas. It is also worth knowing whether Mauerlat needs before Armopoyas, what are the advantages and disadvantages.

Note that from overlapping to the upper face of Maurolalat must be at least 30-50 cm so that the space under the roof can be well ventilated, and access to carrier structures Roofs for prevention and repair.

Methods for fastening to aerated concrete

It is worth noting that it is much more complicated by laying Mauerlat on aerated concrete than, say, on a brick wall. It is usually placed with an indent from the outer edge of the wall by 5 cm.

Elements can be used for laying and fixing Maurolalat:

steel wire;
anchor bolts;
chemical anchors;
studs made of steel.

The fixation of Mauerlat on the reinforcing belt or on a brick wall is performed using anchor bolts.

After the timber is installed, it is attracted with a rafter foot and primed it with a steel twisted cross section of 3 mm. At 6 cm below the bar need to install the short one, on which the wire residue will be secured. Alternatively, for reliable fixation, the wire can be wrapped around the slab overlap.

If we are talking about the roof complex design, the mounting of the Mauerlat Brous to the aerated concrete is recommended to perform at all on the belt of reinforced concrete. It will ensure not only greater reliability of the design, but also will evenly distribute the load.

Bursts from Maurolalat are fixed with the help of oblique tape with further fixation on nails or bolts. Staples or steel plates give angular compounds Additional rigidity.

Locking Mauerlat with Wire Application

Before conspiring Mauerlat to aerated concrete with steel wire, it must be pre-fixed in the thickness of the wall. This should be done during the laying of the last rows of gas blocks - the wire is placed under them.

Installation technique in this way looks like this:

For a couple of rows before the end of the masonry between the blocks, the twisted of several thinner wires are placed, a cross section of 6 mm.
In the thickness of the masonry in this case, the central segment of the wire will be placed, and the ends will hang on both sides of the masonry. The length of the ends make such that they are enough for a loose cloud around the bar.
The wire segments should be so much enough for the strapping of all rafting legs.

How to fasten with stiletts

It is advisable to fastening Mauerlat to aerated concrete without armopoyash on the heels only in cases where it is planned to use the lungs. roofing materials In the houses of a small square. Consequently, the expected load on the walls will be small.

In addition, in this situation, the Mauerlat Bar itself will serve as Armopoyas. Although there are contradictory opinions on this type of installation of Mauerlat on aerated concrete, still practice shows that it is quite eligible for life. This technique provides a sufficient level of reliability and stability of roofing structures.

Supports will be needed for work:

metal studs of the CPT-12, which are also called the "lobby tail";
a timber bar with a cross section of 20 × 30 cm - although the thickness depends on the size of the element of the building.

The sequence of work on laying Mauerlat on aerated concrete without armopoyas looks like this:

Over the entire length of the carrier wall in its upper part, removal drill at a distance of 100-150 cm.
In the finished holes, the studs for Mauerlat are placed, and they are fixed with a non-changing solution or cement milk.
On the wall of the blocks, waterproofing from the double layer of the rubberoid is laid. In the location of the studs in the material pierce holes so that it tightly swept the surface of the metal. This stage allows you to protect wood from rotting due to moisture.
Next in Mauerlat drill the recesses on the diameter of the studs with a step that coincides with their location.
Now the Mauerlated timber is worn on the studs and fix nuts with the washers.
After installing the bars, the jammed end parts are tightened with metal brackets.
Next, the installation of directly rafter feet is performed.

A somewhat different way will look like a roof mounting process to aerated concrete if the studs are mounted in the reinforcing belt.

The sequence of actions is as follows:

Before the fill cement mix In the formwork, the studs are installed under armoomas in a step of up to 1 m.
Fix them to the frame knitted wire or plastic tie.
Align the location of the studs on all axes.
Formwork with reinforcement and studs are poured with cement composition.
After the full pouring of the reinforcing belt on protruding studs, the Mauerlat bar is put on and tighten with its nuts.

The use of chemical anchors

Under the chemical anchor, the liquid injection mass is meant on the basis of a polymer resin, which quickly freezes and firmly fixes metal rods into the thickness of Maurolalat.

The advantage of this material is the absence of a driving voltage, so the fragile aerated concrete is not destroyed. If the mechanical anchors fix the details by cutting a dowel, then the adhesive composition of the chemical anchor fills the pores of the aerated concrete and holds the rod motionless.

The process of fixing liquid dowels looks like this:

In the gas-block drill a deepening for anchor. The size of the recess must be greater than under the usual anchor bolt.
Dust and debris are removed from the fossa, for example, a vacuum cleaner.
The glue composition is poured into the hole.
Next, the glue is inserted with a metal rod with a thread - the stud M 12-14 or a piece of fittings.
Full crystallization of the polymer composition occurs for 1/3 hours if the temperature of the medium is above 20.
Once the glue is freezing, the hairpin will be securely fixed. It is noteworthy that such a fastener is stronger than mechanical.

Installation of the Mauerlat for the roof on the wall of aerated concrete with liquid dowels has a number of undoubted advantages:

Fastening does not lose strength for more than 50 years.
Thanks to the polymer structure of glue, this method of fixation is widely used on the edges of the walls, where there is a risk of spray blocks.
The chemical anchor is characterized by good chemical stability.
Even raw weather and the wet surface of the jacket items does not interfere with the installation of these fasteners.
The installation of the roof Maurolalate on the aerated concrete blocks can be carried out without filling the armolation, since the reliability of fastening the chemical anchor is much higher than that of mechanical.
The chemical composition of the anchor is ideally combined with the porous structure of gas-blocks.
To install liquid dowels, openings are required to be less depth than in the case of mechanical anchors - there is a depth of 2-3 rows.

Nevertheless, on the anchors established by this method, welding works cannot be carried out - overheating of the metal rod will lead to disorders in the polymer structure of the material, from which it will lose strength.

Fastening on an anchors of a mechanical type without armopoyash

Finally, the last way to mount Maurylalat to aerated concrete is the use of traditional mechanical anchor bolts.

Anchor consists of:

internal steel rod with carvings;
external corps - spacer part of the mechanism.

The principle of an anchor is the gradual deformation of the external body as the nut on the bolt is tightened. In this way, the bolt is firmly fixed in a drilled hole.

Installation of anchor fasteners is happening like this:

According to the last row of blocks along the walls lay bars.
Across the length of the bar with a step in 1 m, the holes for mounting the bolts are done. Please note that the anchors necessarily hit the corners of the building and the location of the two segments of the bar.
A special brown through the laid Mauelalat in the gasoblock is done by a hole to the depth of an anchor entry. In this case, the depth of the opening should be no less thickness of 2-3 rows of masonry.
Anchor bolt is inserted into the deepening. It is advisable to use products with a length of at least 50 cm and thread m 12-14.
At the end, the bolt is put on the puck and tighten the nut as close as possible. As a result of compression, the housing of the anchor is compressed and cutting the material. So the bolt is securely fixed in the thickness of the wall.

With arrangement scope roof The installation of the rafter system cannot be performed directly on the wall of the building. An additional element that perceives the load from rafters and transmitting them to the walls will be Mauerlat. This is usually a special bar, which is stacked around the perimeter of the walls. Since it perceives a serious load from the roof, it is very important to reliably fix the Mauerlat on the wall. In the case of brick or concrete walls Everything is simple and understandable. But how is the mounting of Mauerlat to aerated concrete without armopoyash, because the gasoblock itself is rather loose and porous, so it can not provide a solid fixation of the fastener? It is about this that we will talk in our article.

Functional purpose Mauerlat

Usually, the same material is used for the manufacture of Mauerlat as for the solo system. Most often it is made from a wooden bar. However, if the rafter system of metal, then this structural part can be made of a channel or a heap.

Usually this element is made from the following materials:

Wooden timber secting 100x100 mm, 150x150 mm or 200x300 mm. The timber is performed from hardwood wood and undergoes mandatory antiseptic processing. The product is placed around the perimeter on the walls of the structure. The joints are fixed with nails or direct lock. In private construction, the wooden structure of the roof is most often used.
Less often, for these purposes, rolling profiles are used - a series with a P-shaped section of section or a heap with a n-shaped cross section. The height of the profile is determined by the calculation and may be within 70-120 mm.

Bar or steel beam is attached to the walls. Can be used different methods Fastening. Next to Mauerlat relieve rafting legs. They have a burden on this element, which in turn, evenly distributing, transmits it to the walls of the building. In addition, this timber holds the rafter system from offset.

Important: Since the aerated concrete tolerates long-term point loads, gradually destroyed, it is recommended to build a monolithic reinforced belt before laying Maurolalat.

However, there are ways of laying this structural element on the walls of aerated concrete without armopoyas. It is also worth remembering that the upper face of Mauerlat should be located at an altitude of at least 30-50 cm from the surface of the overlap. This will ensure efficient ventilation of the underwear, and also facilitate inspection and repair of roof structures.

Methods of fastening

Mounting Mauerlat to aerated concrete is much more complicated than a brick wall

Mounting Mauerlat to aerated concrete is much more complicated than to a brick wall. As a rule, this product is placed at a distance of 50 mm from the outer edge of the wall. The following fastening elements can be used for mounting Maurolat:

steel wire;
anchor fasteners, mounted in masonry;
special chemical anchors;
steel studs.

Important: For fastening the support bar to the reinforced belt or brick walls Anchors are used.

After installing the bar, the rafter foot is attracted to the wall using a twist made of twisted metal wire with a diameter of 3 mm. To fix the wire below the bar for 6 cm is mounted steel short. Instead, fixing the wire can be performed to the slabs of the overlap. When installing a complex roof, it is recommended to perform a reinforced concrete belt, which will allow the building an additional rigidity and more evenly distribute the load from the roof on the walls of the house.

For the binding of individual parts of Mauerlat in a single design, oblique bail is used with subsequent bonding nails, screws or bolts. To enhance the angular parts of the structure, steel plates and brackets are used.

Using a wire for mounting a bar

If the wire will be used for attachment, the wire will be used, then it is necessary to take care even at the stage of performing wall masonry. Wire must be laid in the football of the walls when performing several last rows. At the same time adhere to such a sequence of actions:

During laying aerated concrete blocks for two or three rows until the end of the masonry of the walls between the elements, the steel wire is laid with a cross section of 6 mm, which consists of several twisted thinner wires.
At the same time, the middle part of the fastener is started in the masonry. His ends must speak out of the walls. The length of these ends should be such that the wire can be freely drivened around the laid timber.
The number of wires used should be equal to the number of chained rafters.

Fixation with studs

Mounting Maurolalat To the wall of aerated concrete with studs allowed when mounting light roofs on small houses. Materials used to form roofing pie must be as easy and not to transmit significant loads on the remaining structural parts of the building.

This technique is not suitable in the case when Armopoyas does not work. In such a situation, the timber itself will perform the functions of the reinforcing belt. This method causes quite controversial reviews of specialists, but in practice it has proven itself very well, providing high reliability and stability of the roof.

To fix the bar to the aerated concrete, you will need the following elements:

studs marking CPT-12, called "Lastochkin Tail";
a wooden beam with a cross section of 20x30 cm (the dimensions of this element depend on the thickness of the outer walls).

Perform work in this order:

In the walls of the gas block drill holes in 100-150 cm increments.
Insert the heels into the holes and fix with cement milk or the non-sinking solution.
Next you need to perform waterproofing. For this, two layers of rubberoid are stacked on the wall. At the location of the studs in the material you need to pierce holes to provide its dense fit to the walls. Waterproofing will protect the wooden bar from the saturation of moisture and the subsequent rot, which can come from the walls.
With the same step, as the studs were installed, the holes suitable under the heel diameter were drilled in Mauerlate.
Then the timber is satisfied with the studs over the waterproofing, the washers are installed and tightened with nuts.
After mounting the bar, the ends, in which separate fragments of the bar are joined, are tightened with forged steel brackets.
Now you can proceed to the installation of the rafter system.

If the hairpins will be mounted in Aropoyas, then the work is as follows:

Before the fill of Armopoyasa, studs are placed in it with a step no more than 100 cm.
They are attached with knitting wire to the reinforcement frame of the belt. Instead of wire for fixing studs, plastic ties can be used.
The accuracy of the installation of spills horizontally and vertical is checked.
Concrete is poured into the formwork of Armopoyas.
After it is frozen, the prepared timber is powered by holes on the protruding ends of the studs and attracts nuts to the surface.

Chemical anchor

This product is also called a liquid dowel, an injection mass or an anchor pasted. In essence, this glue with high gluing characteristics, which is manufactured on the basis of a synthetic polymer resin. Thanks to the chemical ancircuit, the metal rod and base can be firmly secured.

IMPORTANT: Unlike other fasteners The liquid dowel does not create in the inspection voltage material, which is especially dangerous for fragile aerated concrete on the edges of the walls.

Unlike mechanical anchors, the fixation of which is based on the use of grinding forces and cutting a dowel from polymers, the chemical anchor is fixed due to the fact that the glue penetrates the pores of the aerated concrete to a significant depth and firmly fixes the rod in the wall.

Installation of the chemical anchor is performed in such a sequence:

First drills the hole by the anchor. However, its size should be slightly larger than for an ordinary anchor bolt.
With the help of a special rod or compressed air from the channel, dust, garbage and metal crumbs are removed.
In the hole prepared in the wall poured a special chemical adhesive composition.
After that, the steel rod is inserted there - the threaded stud M 12-14. Also for these purposes, you can take trimming of fittings of a suitable diameter.
The adhesive composition is gaining the necessary strength in 20 minutes, provided that the ambient temperature is approximately 20 ° C.
After froze chemical composition The rod is reliably fixed in the wall. And the strength of the attachment is much higher than that of the mechanical method.

Advantages of using a liquid dowel:

The duration of the service of such a fastener is over 50 years.
This method of fixation can be used on the edge of the walls, without fear that it can split.
Fasteners have a fairly high chemical resistance.
Fastening is allowed to perform on a wet material, that is, the installation can be carried out even in rainy weather.
Works on the installation of Mauerlat and the roof arrangement can be performed without the use of the reinforced belt, since the chemical anchor is much stronger than the fragile material than a mechanical dowel.
This method is ideal for working with aerated concrete.
The depth of the hole may be less than when installing a mechanical anchor, which must be plugged into 2-3 rows of masonry.

The only drawback of this method of fixation is that with a rod attached to a liquid dowel cannot be welding, since the polymer material is destroyed from heating, the fixation strength is reduced.

Mechanical anchor (anchor bolt)

This is a fairly common way to fix timber to the walls. Anchor bolt consists of the following parts:

external spacer;
internal threaded rod.

Fixation occurs due to the fact that at the time of screwing the nut on the rod, the spacer design is deformed in such a way that it reliantly fixes the product in the hole drilled in the wall.

Work on the installation of a mechanical anchor is carried out in this order:

A prepared timber is stacked along the perimeter of the walls.
Next along the entire length of this product, holes are drilled to install anchor bolts. The step of the holes is 1 m. It is important to try that the places of installation of anchors necessarily hit the corners of the building and the location of the two ends of the bar.
After that, with the help of a drill through the holes prepared in the Mauerlat in the walls, holes are drilled to depth equal to the length of the anchor. It is not allowed to make the depth of the institution of anchor less than 2 or even 3 rows of masonry.
Anchor bolt is installed in the hole. For these purposes, it is better to take products at least 50 cm long with thread M 12 or 14.
After that, the washer is worn and the nut is tightly screwed. As a result, the steel or plastic dowel is squeezed so that it is firmly pressed into the material and fixes the bolt in the wall.

Scheme fastening rafal

Mauerlat - part of the roof of any structure, which is a bar, which is stacked on top outdoor Wall around the perimeter.

Its purpose is a uniform distribution of the load from the roofing system to the entire surface of the bearing walls. It can be made of wood or metal. In the case of the use of metal Maurolalat, ready-made products are taken: 2-way, channel, corner.

To fulfill its function, Mauerlat must be reliably attached. There are two ways: Mounting Mauerlat to aerated concrete without armopoyash And with armopoyas.

Mounting Mauerlat with Armopoyas

Using aerated concrete as the main material for masonry walls, it is necessary to understand that it will not be able to withstand the load of the rafter and roof, so the creation of armooye is mandatory.

Appointment and sizes of Armopleois

Armopoyas is a closed construct from reinforced concrete, passing around the perimeter of the structure. Appointment of Armopoyasa:

preventing the deformation of the bearing walls;
giving an additional stiffness to the structure of aerated concrete;
uniform distribution of the load on the surface of the walls.

Armopoyas is essentially a foundation for roofing system. The dimensions of the Armopleois depend on the width of the walls, for aerated concrete, the width of the ArvaniPOSOS is approximately 25 cm, and the extreme range is laid out by U-shaped blocks, which will later play the role of formwork for the fill of the concrete solution.

Important! ARMIASS must be a continuous monolithic design!

Prepared formwork before concreting

Armopoyash technology technology:

Formwork construction along the perimeter of the structure.
Creating armoootica from concrete blocks.
Assembling frame from fittings.
Installation of studs for fastening.
Pour blocks with concrete solution.
Eating the formwork after pouring the concrete.

After armopoyas is ready, and the formwork can be removed directly to the mounting of Maurolat.

How to fix Mauerlat to aerated concrete

It depends on its proper attachment to the carrier walls and the rafter system of the building, the service life, noise and waterproofing characteristics and strength.

Mauerlat must be made of the same material as the rafter system. If metal structures are used, metal beams, chawllers, corners are used as Maurolalate. For the wooden rafter system, Mauerlat will be made of wooden beams. The section of the beam depends on the calculated load, the type of roof and the diameter of the rafted beams.

Before installing a wooden mauelalate on aerated concrete blocks, wooden bars should be treated with antiseptic solution that protects wood from insects and rotting. Also, the bars are advisable to wrap the layer of waterproofing material. To do this, you can use waterproof, elastoismol, hydrokhotloizol, glass asthm. These materials will not be ascending the design and create a layer of additional moisture insulation.

Maurylalat is attached to the walls of aerated concrete using anchors, studs or metal wire. When laying BRUSEV, it is necessary to connect them at the joints of metal brackets.

Fastening diagram with spills (right) and brackets (left)

Next, it is necessary to make the attachment of the rafted to Mauerlat. The connection occurs by writing, knocking, washed, but it should take no more than 25% of the bar. The mount is performed using self-tapping screws, bolts, corners, metal plates and mounting foam.

The main methods of fastening, starting with more preferred:

Stiletto fastening. This type of fastening can be used in the construction of both simple single-storey buildings and auxiliary facilities: Baths, summer cuisines, garages, housekeeping, small country houses. This method of fastening with studs is preferable for most buildings.
Fastening with chemical anchors. The addition of bars to a gas concrete is carried out by a special chemical adhesive composition: "Liquid dowel", pasted anchor, etc. The composition is made on the basis of polymers and contains adhesives in the form of synthetic resins. IN aerated concrete wall The hole is made as under the usual anchor, which is filled with the adhesive composition, then the rod (armature) is inserted into the prepared hole, which is then installed by Maurylalat. The strength of such a design is quite high, however, with a large perimeter, Mauerlat will be expensive.
Fastening steel wire. This method It can be used if there is still a metal wire with a metal wire at the stage of laying of walls between aerated concrete blocks. In Mauerlat, holes are made, where the wire is inserted and the strapping is made. It is very important that the amount of strapping with the wire is no less than the number of cast rafters.

Mounting Maurolalat to the wall of aerated concrete without armopoyash

In accordance with the SNiP, the mount without a preliminary device of Armopoyas is allowed only in exceptional cases. Aerated concrete is not enough durable material, and will not withstand the spacer snow load, as well as the dynamic wind load, so Aropoyas is obligatory!

In some cases, the mounting of Maurolalat to the walls of aerated concrete blocks is possible without a device of Armopoya. This significantly reduces the cost and speeds up the construction. However, this is possible when complying with the following conditions:

as a basis, a light wooden bar is used with a cross section of no more than 20 cm;
the timber will be reinforced with metal elements: locks, nails, metal profile;
snow and wind loads in your region are insignificant;
the design of the rafter system eliminates the spacer loads.

Maurylalat is located at a distance of 0.5-1 cm from the outer edge of the bearing wall, and studs, chemical anchors or steel wire are used to fix it on aerated concrete.

Fix Mauerlat on aerated concrete is simple enough. A thorough preparation of all components is played primary role: wooden Bruschev, fasteners, reinforcement frame, reliable waterproofing. Let's look at the order of work.

Mounting Mauerlat to aerated concrete

Before directly fastening, Maurolalat should prepare a basis. Reinforcing belt – required condition When the roof is arranged, if the walls are made of aerated concrete or any similar material.

The reinforced concrete strapping believes warns the pressing of aerated concrete blocks and allows you to evenly distribute the dynamic and static forces coming from the roof completely on the wall area.

Arming the reinforcing belt

The minimum size of the concrete tape is 200x150 m. It is attached from the inner surface of the wall.

Installation steps:

construct formwork around the perimeter of the house. FRONTONONS process necessarily;
u-shaped blocks create a reinforced concrete belt;
from the reinforcement with a thickness of 10 mm collect the framework. Armature must perform 4 cm;
for the hard attachment of Mauerlotata on a gas-concrete with an interval in 1m, stilettos are installed. Their diameter - 14mm;
blocks fill the M-200 brand concrete;
a week later, you can remove parts of the formwork and fastening Maurolat.

Important: At the stage of preparation for the beginning of work, builders are required to calculate the number of studs and the future distance between them. The attachment points of the wooden structure to the rafter and the connection point with the reinforcing belt should be placed in different places. Check that the number of rafter legs and spills is the same.

Preparation of wooden design

Brux processed before installation antisepticsWood preventing rotting. A log or timber segment 100x100 mm or 150x150 mm is wrapped with waterproofing material. For this purpose, a bitumen-polymer waterproofing material is suitable. Ruberoid does not apply.

Qualitative materials will allow creating a solid construction. The tree should not have bitch and cracks. Humidity must comply with construction standards.

If the developer uses "raw" wood, it is necessary to provide adjust the anchor nut.

This operation is produced 1 time per year for 5 years. During this period there is an intense shrinkage of wet wood. As the bars dry out, pulling up the nut will have to become less and less.

In this photo, you can visually see one of the ways of fastening Mauerlat on the walls of aerated concrete.

How to fix Mauerlat to aerated concrete?

Use anchor with washer and nut. Form of anchors: T- and G-shaped. Thread: M12 or M14. According to international construction standards, in seismic areas between adjacent anchors, the step should not exceed 1 - 1.2 m.

Mechanical fasteners

Procedure:

dowels are inserted into the prepared holes;
screw fasteners;
garpoon teeth are firmly pressed into aerated concrete;
the surface is expanding;
the design is securely fixed.

Excellent option Maurelala installations on aerated concrete has only one drawback - high cost. 1 Anchor and Special Dowel with Garpoon costs more than 3 thousand rubles.

Another video on how to fix Maurylalat to aerated concrete.

Installation Maurolat

Another method is used to fasten the Mauerlat in aerated concrete walls. Need capsule with chemical. Its cost is much lower - 150 rubles. for a unit.

Reliable fixation of the design is achieved by penetrating chemicals in the pores of the material. Additionally concrete surface Gets heat and waterproofing.

Finishing stage

After mounting, Mauerlata on aerated concrete installation of the rafter design. There are two ways.

First option

in the boards, they are replaced by 1/3 of the depth of the board;
nails and metal corners will allow reliably to fix rafters;
nails (2pcs.) Cross-cross will be clogged with sides;
an additional nail is driven from above;
fastening corners finally fix the joint.

Second option

in the rafyl, it was not carried out;
from the bottom, the special reference bar, resting in Mauerlat;
nails are driven as at the first time.

The reference bar has a length of 1 m. The second option is suitable for rafters having a small height.

The fastening of the binder timber can only be performed after accurate calculations and billets of high-quality materials. Purchase of inadequate quality bars with high humidity can lead to a structural strength violation.

For mounting Mauerlat to a fuel-concrete wall, use anchor with special dowels or chemical method Installations. Be sure to perform Thermal insulation of the reinforcing belt from extruded polystyrene foam.

Compliance with the requirements will allow to secure Maurylalat and create a solid rafter design.

People who are uninitiated in the nuances of capital construction of the roof is hardly known for what Mauerlat needs, what is the design. And the question how to make Mauerlat on aerated concrete is complete misunderstanding. In fact, he is simply attached. The main thing is to prepare all components: reinforcement frame, fasteners, wood bars and competently produce waterproofing and wood processing.

Mauerlat - description in detail

This design is made of wood bars. Performs the function of additional support for the load from the roof, with a further uniform distribution throughout the perimeter of the walls.

If you summarize everything above, we come to the conclusion - Mauerlat is responsible for two important tasks:

uniform distribution of gravity rafted on the wall;
fixation raftered to a box of structure;

Maurylalat can be manufactured not only from wooden bars, but also from a metal chawller or beams.

In this embodiment, the rafter system also needs to be done steel. But this option is used extremely rare due to the high cost of material and difficulties in the installation.

Materials and calculations

From how reliably, Mauerlat is attached to a gas concrete depends the strength and reliability of the roof. Therefore, it is necessary to count everything correctly. Minimal dimensions of the secting of wood bars should be no less than 10? 10cm. experienced masters And designers recommend using higher performance.

Using for Mauerlat, it is the log logs from the tree one side must be stessen. This is necessary for dense adjacent to the surface of the upper gas-concrete wall.

As for the wood breed, it is better to choose deciduous. Previously before installation, be sure to handle the antiseptic. Brux lay so that they evenly cover the entire top of the walls. Basin the adjacent details by direct lock, enhance nails.

The width of the wooden bars is less than that of gas blocks, so it is necessary to install them, shifting in the direction of the inner edge, without reaching the end of centimeters to 5.

Ultimately, a one-piece design should be formed with high rigidity and reliable support for the rafter design.

Preparation of wooden bars before installation

As already mentioned, the bars before installation of Mauerlat on aerated concrete should be treated with antiseptics. They will prevent the penetration processes of wood. Breeds to take with a 100 mm cross section, and it is better to choose a more durable 150 to 150 mm. Wrap them with waterproofing material, for example, bitumen-polymer. Ruberoid is not used for this purpose.

A durable design is capable of creating only high-quality materials, bumps in the logs should not be. Special attention deserves the moisture content of wood - it must meet the regulatory indicators. If a wet material is used (meant bars), then you need to adjust the anchor nut.

Hightail nuts should be performed once per year for 5 years. It is necessary because in the first few years, wood is susceptible to intense shrinkage. And as the material is dried, the nut must be tightened all the time. After 5 years this procedure will have to do more and less. Mauelalat is attached with special anchors with nut and washer. They must have a g-or T-shaped shape with M12 threads or M14.

According to European and international standards, the distance between two adjacent anchors should be no less and no more than 1-1.2 meters. This is especially true of seismic regions.

Mounting Mauerlat to gas blocks without Armopoyas and with him

To accomplish this task, you need to trace the Mauerlat to be installed correctly and is unreliable. There are two fastening technologies used by developers: with a reinforced belt or without it.

Methods for fastening the structure with the presence of armoo

Choosing aerated concrete for the construction of the walls, you need to understand that the box of the house out of it will not cope with the severity of the roof. The construction of the reinforced belt will help her cope with this problem.

Dimensions of Armopoyas and its purpose

Armopois is a reinforced concrete closed design that envelops the construction of perimetically (that is, around the entire building). Tasks put forward to it:

protection against wall deformation;
additional rigidity of a depletion building;
adjusting the load on all surfaces of the walls is uniformly.

Armopoyas is a kind of foundation intended for the roof of the building. Its dimensions are chosen in accordance with the width of the walls and are approximately 25 cm. The extreme row should be laid out by blocks like the English letter U. They will later subsequently perform the task of formwork when pouring concrete.

It is imperative that Armopoyas is produced by a continuous monolithic design.

Installing Armopoyash

Step-by-step technology of Armopoyasa is as follows:

Initially, the formwork should be built around the perimeter.
Armopoyas made from monolithic blocks.
Then the frame of reinforcement rods is going.
Studs are installed for fastening.
Now everything is necessary to pour with concrete solution.
When it freezes, the formwork must be removed.

After the completion of the construction of Armopoyas and the removal of the formwork, it will be possible to start installing Maurolat.

How to install and fix Mauerlat

This element and the rafter system must consist of identical materials.

Before installing on aerated concrete Maurylalat, you need to not forget to treat it with antiseptic substances. Then wrap the type of waterproofing material type: hydroisol, glass astorelasticism.

Maurylalat is fixed to the wall structures with stiletts, iron wire or anchors. If it is made of wood, then it can be fixed with special metal brackets.

After that, it will be necessary to braid Mauerlat Slinge. The compound is carried out by the method of insertion, no more than 25% thickness. Fixed bolts, screws, special corners, steel plates.

Construction of reinforced concrete armoomas can be warned in aerated concrete blocks unwanted sales. It will contribute to the uniform distribution of gravity on the box at home and the effect of dynamic and static strength, coming on the walls.

Installation technology without armgrament

In the requirements of SNiP, it is said that the installation of Mauerlat aerated concrete house Without reinforced belt, in principle is unacceptable. It is allowed to make it only rare cases. This can be clarified by the fact that the aerated concrete structure is unable to cope with spacer snow load, dynamic and wind. Armopois serves as a significant deformation protection. As an exception, Maurylalat is allowed to fix on the structure without Armopoya.

This embodiment will speed up and reduces the process of construction. But in this case, the requirements should be followed:

for the foundation, a light, but larger bar having a section of at least 20 cm;
it should be strengthened with steel elements: metallic profile, nails or castles;
the climate, where the construction is carried out not harsh and snow or wind loads are, but a minor strength.
Mauerlat should be placed in relation to the outer edge in the bearing walls at a distance of 0.5 - 1 cm. Mauelalat chemical anchors, wire made of steel or special studs.

It is very important before installing Mauerlat on aerated concrete , Exactly calculate the number of fasteners, as well as the distance between two adjacent fasteners.

It should be understood that the operational period of the roof is directly and largely depends on the strength and proper Installation Mauerlat. And for this it is impossible to allow errors even, at first glance, minor. Only so the roof will not be the cause of the deformation of the house, and will serve reliable protection from external and weather factors. You need to trust this work to be experienced developers and roofers.

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