Installation of wind protection for my house, business day and the house is rolled up. Vapor and waterproofing... What films and where are they placed in the roof or frame wall? Windproof film in a frame house

Wind protection for the walls of a frame house and roof is a necessary element of the building system. The “pie” of frame walls and roof consists of a couple of layers, each of them performs its assigned function. Violation of the rules for constructing external fences, especially the lack of windproofing, significantly worsens the properties of a frame building.

Why do you need wind protection for a frame house? From the name it is clear that this material protects walls from the wind. Therefore, the effectiveness of insulation increases approximately 4 times. The design and construction of private apartment buildings is a responsible, painstaking process that will require compliance with the order of work.

To ensure comfort, warmth and convenience in the house, you need to think about all the components in the design at the construction stage. This is especially true for hydro-wind protection. Let's analyze what wind protection involves, key functions, types and installation of wind protection step by step.

Wind protection device

A special membrane is installed on the external walls. An exception applies if the building is finished using the “wet facade” method. This term implies the use of special compounds that are diluted with water. In other words, the front side of the building is decorated with plaster. The protection in this case is the finishing layer of plaster, which can permanently protect the structure from weather conditions. Perhaps, in addition, lay a layer of film under the plaster.

TechnoNIKOL for protection.

In other options, wind protection is arranged in the following way. The film is stapled onto the building frame. Then the exterior finishing is carried out (finishing layer formed by hardened building mixture, brickwork, cladding). It is necessary to take into account a ventilation gap of 25 to 50 mm between the windbreak and the cladding.

On a note

Wind protection is installed on top of the insulation. Otherwise, steam will be outside, and condensation will form on the insulation. Don't skimp on this layer.

There is an argument that polystyrene foam guarantees the likelihood of not using a windproof layer. In the process, this does not make it possible to eliminate the difficulties of blowing the structure. There is no need to tempt fate, especially considering that the price of wind protection for a frame house material is low.

Wind protection functions

There are three key functions of wind protection:

1. Protection against moisture penetration into the walls of the building.
2. Blocking the house from blowing. Corners are considered weak areas.
3. Free release of vapors through the material.

The listed functions are performed in the presence of special films and membranes. They directly form the environment that does not allow air to easily leak into the constructed building.

Types of wind protection

Hydrowind protection for a roof is one of the main aspects of external insulation, since very large heat losses occur directly in the wind with little insulation. Let's consider what is the best wind protection for a frame house.

Oriented Strand Tiles

Flat rectangular chips have a width of 0.7 mm and a length of 140 mm, placed in 3 layers. The tile has a homogeneous composition.

OSP-1- used in low humidity conditions.

OSP-2- used to create load-bearing systems in dry rooms.

OSP-3- used for the manufacture of load-bearing systems in conditions of high humidity.

OSP-4- used for the manufacture of systems that bear mechanical loads in conditions of high moisture.

The material for moisture and wind protection is quite simple to process. It can be easily sawed, drilled, glued and sanded. The tile holds any fastener perfectly and does not break. Smooth, strong, waterproof.

Unlike chipboard, this material does not emit toxic gases.

Pros of OSB

• It can be easily cut, planed, and polished with simple tools.
• Low moisture absorption coefficient and the tile does not change its own shape.
• Holds nails and screws right to the edge, no pre-drilling required.
• No waste.
• Long service life.

Isoplat

Windproof isoplats for frame houses are designed for wet weather conditions in the north. Resistance to atmospheric conditions is achieved by adding a waxy substance. Windproof boards are used for external walls and roofs of buildings as a protective, sound-proofing component that increases the stability of the system. Using isoplat, you can solve difficulties with different types of insulation.

On a note

Practical construction shows that one of the most difficult tasks is ventilation and ventilation of insulating systems to eliminate condensation. Errors in calculating the “dew point” are sometimes impossible to correct.

The slabs are completely treated with paraffin, which guarantees their stable resistance to the influence of wet weather. Isoplats are easy to process. To cut the required size, use a carpet knife, which guarantees a clean cut edge.

Izospan

Wind protection isospan for a frame house is an excellent means of hydro and vapor barrier, which makes it possible to improve the heat-protective qualities of the insulation and the entire structure. These are excellent mechanical reliability, natural security, ease of installation, long service life, high resistance to chemicals. Working with isospan is as comfortable and simple as possible.

Hydrowind protection isospan does not emit elements harmful to humans. The membrane maintains its performance characteristics for a long period. The material is suitable for roofs with various coverings from tiles to soft fiberboard with the addition of bitumen.

Studying the instructions for use, the membrane is placed under the sheathing above the insulation layer, on top of the load-bearing elements of the roof. The installed material will protect the structure from the wind, and the load-bearing components of the frame from the creation of condensation.

Tyvek

Tyvek wind protection contains a porous composition. If you look under a microscope, the Tyvek material looks like a mesh. The material includes a million of the finest continuous fibers of low-density polyethylene. They are purchased using ultra-high-speed molding and bonded under the influence of temperatures.

Why is Tyvek the best wind protection for a frame house? The effectiveness of the material lies in eliminating the entry of moisture and air from the outside. The porous composition allows moisture evaporation to seep through it, so the material “breathes”. The advantages include the high service life of buildings and heat savings. Tyvek hydro wind protection protects homes from moisture.

Diffuse membrane

Moisture and wind protection for walls protect the system and thermal insulation from moisture, retains heat, preventing blowing out. A universal membrane can be from two layers or more. The material is placed directly into the thermal insulation, with the colored layer facing out, with an overlap of 150 mm. To guarantee normal thermal insulation, isospan is chosen for a frame house. When the roof slope is less than 25%, it is recommended to glue the membrane with special tape.

Ondutis

There are a large number of types of materials that can be used to protect a wooden building from wind. Among them, it is necessary to note the wind protection ondutis. They are sold in rolls 1500 mm wide. One roll contains 50,000 mm of material. They make a choice based on the purpose of application and characteristics. This also includes the price of wind protection for the walls of a frame house.

Ondutis A100 is installed under the external cladding in ventilated skeletal walls, in wood, concrete walls with external insulation. The material is used as short-term protection of the walls before installing the main cladding for two months.

A120 Ondutis is made from polymer fiber and is highly vapor permeable and prevents moisture from entering. This is an excellent wind protection for the floor of a frame house. Placed under the outer cladding on top of the thermal insulation. It is used when constructing shelter on pitched roofs, in the facades of high-rise buildings, and for insulating attics.

The protection resists powerful wind loads and is resistant to sun exposure and decay. This type of windproof material is a membrane material, which, in addition to its main purpose, has the following advantages:

• Withstands temperature changes from - 40 to + 80 C;
• Not affected by solar radiation;
• Guarantees auxiliary thermal protection of the system;
• Lets steam through;
• Fire resistant;
• It lasts a long time, which is a very big plus.

Installation of wind protection step by step

Wind protection for the walls is installed from the outside of the structure. The membrane covers the entire plane of the panels. Installation is done quite quickly, due to the fact that it is a roll film.

Installation is carried out in the following way:

1. The specialist checks the correct placement of the sides: the rough surface is oriented towards the inside of the structure, the smooth surface is oriented towards the outside.
2. The roll needs to be rolled out, the film placed in place of the wall, moving from bottom to top. Secure with a construction stapler and trim off excess material.
3. For a more accurate cut, the material is bent in this place.
4. Each piece must have an allowance of 150 mm. What is it for? To pass it between the wall and the layer of thermal insulation. This way you can secure the film more firmly and provide maximum protection to the structure.
5. The film is reinforced with dowels with a wide head. This fitting makes it possible to secure the material in such a way that even during a hurricane nothing will happen to the building. The width of the fastening component is 10 mm, the length depends on the thermal insulation material. In order to fix the dowel, a specialist makes an opening in the wall with a screwdriver, then hammers it in with a hammer.
6. The strips are placed one on top of the other with a minimum overlap of 100 mm.

Frame buildings are built according to the “pie” principle - the walls have several layers. Wind protection for the walls of a frame house is considered one of the key points, which guarantees the reliability of the building, ventilation and protection from negative atmospheric phenomena.

Wind insulation can help maintain heat in the building, and in addition make the walls stronger. Buying wind protection for the walls of a frame house is not difficult. The main thing is to consult with specialists and choose the most suitable material for your frame house.

Wind protection for the walls of wooden houses performs the same role as clothing for humans. It prevents the penetration of cold air and moisture from the outside, keeping the rooms warm. By improving the microclimate of the house, protection further reduces heat loss and allows you to save on heating.

What happens if you skip this stage during construction? The frame of the house, assembled from wooden elements, will be saturated with moisture from the environment, will deform and rot. The decoration of the building will lose its attractive appearance, and the cottage itself will begin to collapse. The most dramatic changes will affect the wettest rooms – the kitchen and bathroom.

When using wind protection for the walls of a wooden house from the outside, water not only does not penetrate into the house from the outside, but also does not linger from the inside. The porous film, which is used in construction, removes moisture from the premises. By enveloping the insulation on both sides, the membrane prevents its destruction.

Wind protection device

A special membrane film is used as wind protection for the walls of frame houses. The side facing inward is rough - it accumulates water on its surface. Its turnover is smooth and prevents moisture accumulation. The resulting condensate exits through the pores of the membrane.

The film consists of polymer fibers and is highly durable. Some types of membrane allow additional tension for improved fit. Modern wind protection has a high degree of moisture removal. Thanks to this, the membrane does not get wet and lasts much longer. You can install the film in any weather.

The wind protection design is formed as follows:

Ventilation gaps

When installing wind protection for the walls of frame houses, a special ventilation (air) gap is made. It is created using vertically attached bars and exterior trim.

The question may arise: is it possible to attach the trim directly to the windproof film? Many builders do this, saving on the purchase of additional materials.

The benefit here is only apparent. Indeed, water seeps in capillarily and in small quantities. Without ventilation, it will accumulate, spoiling the insulation array. The gap is created for a practical purpose: to prevent condensation from entering the surface of the membrane. Even if moisture seeps into the film, ventilation holes located on the top and bottom of the wall will help it escape. It is especially important to have wind protection when finishing with siding - this material does not have vapor permeability. The presence of a gap makes the wall dry, reducing its thermal conductivity. This means that the heat in the house will escape outside very slowly, preventing it from cooling down.

Here is one of the air gap options:

Types of materials

What wind protection should I choose for a frame house? To answer this question, you should carefully examine your options. Here is a list of the most common:

• Izospan is a vapor and moisture protective film. Non-woven material is created according to modern standards and is durable. Izospan, used for windproofing walls, is available in several versions. Depending on the type, they have a different number of layers. The degree of possible membrane tension also varies. The wide temperature range of use allows the material to be used in any region of the country. The membrane does not emit toxic smoke when heated.
• Wood fiber boards additionally soundproof the building. The flexible material fits tightly to the walls, preventing them from becoming saturated with moisture. The pores in the wood structure remove condensation out, preventing its accumulation. To keep the slabs dry, they are coated on all sides with paraffin.
• The OSB board strengthens the frame of the building. The material has low vapor permeability, so in this case it is necessary to have a vapor barrier using a special film. Facade types of drywall. They are made from natural ingredients and are therefore environmentally friendly. Drywall is resistant to sudden temperature changes, fireproof and vapor permeable. It is easy to cut and install. The material has a long service life.
• Fiberboard slabs are a mixture of cement, wood shavings and liquid glass. The insulation is characterized by environmental friendliness, a high degree of thermal insulation and sound absorption. Fibrolite is not afraid of either moisture or fire. Drying after getting wet, the slab returns to its original state. Fiberboard weighs little, so it is easy to saw and install.
• Eps boards made from pressed polystyrene are resistant to water, chemical compounds and rot. During the entire period of operation they do not change shape and do not shrink. When used, a rigid base is obtained that strengthens the overall structure of the wall.

Installation of wind protection for a frame house

Installation of wind protection for walls is carried out from the outside of the building. The entire surface of the panels must be covered with the membrane. Installation occurs quite quickly, because the film is produced in rolls. The membrane is laid only after completion of work with thermal insulation, before the start of decorative cladding.

Installation is carried out as follows:

• The master checks the correct position of the sides: the rough side is directed towards the inside of the building, the smooth side is directed outwards;
• The roll is rolled out, the film is placed on a section of the wall, moving from bottom to top, and secured with a construction stapler, the excess material is cut off. It is important to remember that vertical fastening is much more convenient, since already fixed pieces do not interfere with further work;
• For the most accurate cutting, the material is bent along its length and cut with a sharp knife;
• Each piece of material must have an allowance of 10-15 cm to pass it between the wall and the thermal insulation layer. This allows you to fix the membrane more firmly and protect the building as much as possible from gusts of wind;
• The film is secured with special dowels with a wide plate cap. This fitting allows you to fix the material so that it is not afraid of even hurricane gusts of wind. For each square meter, be sure to use at least 5 dowels. The width of the fastening element is 1 cm, the length is selected depending on the thermal insulation material. To secure the dowel, the craftsman makes a hole in the wall using a screwdriver, after which he hammers in the fittings with a regular hammer;
• The strips are laid on top of each other with a minimum overlap of 10 cm. The contact points of the layers are also fixed with dowels.

Warm houses from Territory Group of Companies

If you dream of a cozy home that is not afraid of winds and frosts, welcome to us! The Territory group of companies creates warm cottages for comfortable living all year round. During construction, we comply with all standards and use reliable, proven materials. Professional experience and years of practice are a guarantee of quality work. We offer projects of different sizes to choose from. During construction and design, we take into account the wishes of the customer.

Many modern scientists and philosophers believe that humanity lives inefficiently, carelessly using the planet's resources. Prominent examples are the use of gas and oil. Any chemist will tell you that these minerals are very valuable raw materials for the production of various industrial products. Along with such production, people mercilessly burn these raw materials as fuel. If we talk about gas, millions of cubic meters are simply burned into the air every year, since there is nowhere to store it.

Representatives of the Venus Project say that it is time for humanity to move from wasteful consumerism to the intelligent use of only what is really needed.

If you look at the houses that remain in our country from earlier times, in many respects they were built wastefully. Heat from the central heating pipe is simply lost in the ground; houses are not insulated and not protected from wind and precipitation.

At the same time, official statistics say that it allows annual savings of up to 90% of the energy consumed by ordinary houses.

Installing a wind barrier on a wooden house is one of the components that will make it effective.

Wind protection of the roof

If the roof of the house is pitched, wind protection should also be installed on it. The principle of installing a windproof membrane on the roof is similar to that used on the walls. The materials for installation are the same as for finishing the walls.

First, insulation is fixed between the rafters. It should be remembered that in the case of a roof, an additional ventilation duct approximately 50 mm wide must be created between the insulation and the film. If the insulation is laid at the same level as the rafters, additional rafters must be placed on them to raise the level required for the gap between the film and the insulation.

Film strips are also laid overlapping each other by 2-3 cm. However, on the roof they are laid horizontally, secured to the rafters using construction staples. The seams between the strips are covered with adhesive tape.

It should be remembered that the windproof membrane should sag slightly between the rafters, further ensuring better condensate drainage.

In places where there may be a window or chimneys on the roof, the film is cut through. However, the requirement to maintain the tightness of the joints of the film with the walls of windows and pipes remains.

The final stage is to cover the windproof film.

Windproof films

One of the modern technologies that allows you to protect wood from the wind is a special windproof film.

They are a membrane made of non-woven polypropylene fiber. Wind protection made from such a film should have the following properties:

1. Effectively protect the house from wind and heat loss associated with its exposure.

2. Let in moisture that evaporates from the walls of the house. Otherwise, the walls will become damp and no thermal insulation material will be able to help. At the same time, fungus forms on them.

3. Maintain its functional properties under the influence of high and low temperatures, exposure to sunlight, etc.

In Russia, windproof films from both domestic and foreign manufacturers are used.

Such films are used both to protect walls and roofs. At the same time, they are not finishing materials. On top of them it is necessary to cover the house with any available finishing, for example, clapboard.

It would also be worth noting that there is an alternative - special windproof panels made of pressed wood shavings glued together with wood resin.

Self-installation of wind protection at home

Working with windproof film is not particularly difficult, so its installation can be done independently, without the involvement of hired workers. At the same time, you will need an assistant, because it will be problematic to secure this material alone.

To install the film, the following materials are required:

Insulation (mineral wool, polystyrene foam, etc.);

Wooden thick slats;

Self-tapping screws and nails;

Finishing material of the choice of the home owner.

To begin with, horizontal slats are nailed to the walls of a wooden house, the gaps between which are filled with the selected insulation. Layers of windproof film are placed vertically on top of the insulation.

It must be remembered that the film must fit tightly to the insulation so that in strong winds the so-called acoustic pops are not created. They are dangerous because they can tear the film and it will become useless.

Each subsequent strip of film is overlapped by 2-3 cm over the previous one. This overlap is glued together with regular adhesive tape. The film itself is attached to the slats and insulation using construction staples.

Vertical slats are nailed on top of the windproof film. The pitch between the slats corresponds to the distance between the overlaps of the film strips. Vertical slats will become the basis for installing the finishing material.

Finishing the walls after installing the windbreak

As mentioned above, finishing material is fixed on top of the vertical slats. It is worth noting here that instead of vertical wooden slats, metal profile slats can be installed. Subsequently, with their help, it is convenient to cover the house with siding, for example.

Exterior decoration has two functions.

Firstly, decorative. Wind protection made from film does not look aesthetically pleasing, so it is never left outside. In the case of using special slabs, options are possible when they are both wind protection and finishing material.

Secondly, the space between the finish and the film forms an additional ventilation channel from which moisture is blown out. At the same time, the house remains protected thanks to film and insulation.

Common mistakes

When installing windproof film, mistakes are often made that could have been avoided.

First of all, with the help of film they often try to hide defects in the thermal insulation material, the presence of gaps between it, etc. Loosely laid thermal insulation leads to the fact that its effectiveness is significantly reduced, because in the future heat loss will occur through the gaps.

Another mistake is excessive sealing of the ventilation duct between the film and the finishing material. This channel should be well ventilated, blowing away moisture that evaporates from the house. At the same time, very often workers do not see the difference that it is not external moisture that evaporates, but precisely that which comes from the air space inside the house.

Another problem associated with this is the use of films that do not allow moisture to pass through, even ordinary polyethylene films. In this case, the moisture also does not evaporate and the walls become damp, reducing the thermal insulation of the house.

Very often, when finishing walls, the film is not tightly attached to the insulation. This, firstly, again leads to poor evaporation of moisture, since it can condense between the film and the insulation. Secondly, under the influence of wind, the loosely fitting film breaks.

It is also important that the slats are attached vertically over the film. This will ensure that the condensate drains downwards. If the slats are attached vertically, moisture will collect on them.

At the end, you should talk about an error that occurs during operation of the house. If repairs are carried out using fire (welding), you need to handle the film carefully. A fire may ignite and quickly spread to all floors of the house.

Experts who can help

If you do not have the time or the necessary skills to install a windproof film, it is better to contact a construction organization that specializes or can perform such work. It is advisable to carefully check it for the presence of qualified workers and study reviews from previous clients. It is not recommended to hire workers who are not organized under the direction of the company, since in this case there are fewer guarantees of obtaining a high-quality result.

Windproof membrane is a fairly new material on the construction market. Its demand began to grow with the peak of popularity of the construction of frame houses. But besides this, such a membrane material is very important not only when insulating the walls of a house, but also when arranging the roof, where it has become an integral layer of the “pie”. This stage during construction work should be provided for at the design stage or at the very beginning of repairs. This article will discuss how to choose a windproof membrane for your home and install it correctly.

The importance of a hydro and windproof membrane for the home

• Regardless of what material the house is built from, when insulating it, it is imperative to provide a windproof layer. Its task is to protect the thermal insulation material from the effects of strong air currents, partially absorbing air pressure. But, at the same time, without in any way reducing the vapor-permeable characteristics of the material with which the facades of the house are lined. Therefore, we can conclude that it is the windproof membrane that guarantees the preservation of all the important characteristics of the insulation, allowing it to extend its service life.

• But we must not forget that from the inside of the house you need to make a vapor barrier membrane film that will protect the insulation from water vapor. When wet, it immediately deteriorates its properties and high heat loss begins.

Tip: a windproof single-layer or double-layer membrane is used only on the outside on top of the insulation, and a vapor barrier membrane is used on the inside of the house, as a finishing layer before installing drywall.

• The importance of using windproof membranes is due to several factors. First of all, this is infiltration, that is, when warm air from the house passes out through very small cracks in the structure of the wall material. This occurs especially often in wooden houses when the wood dries out. The second reason is the ventilation of the walls. Even dense materials such as brick or foam block have sufficient porosity to allow air to pass through. The presence of a windproof film helps to cope with these shortcomings, and, without affecting the vapor barrier qualities, stabilize the microclimate in the room.

• In addition, the use of wind protection will protect the insulation from excess moisture due to condensation, which often causes mold to form.

Today there is a very wide variety of windproof membranes on sale, both foreign and domestic. They all vary greatly in price and features. According to their technical characteristics, windproof membranes for the home can be divided into:

• vapor permeable film, promotes the penetration of excess steam from the room, while simultaneously protecting the insulation from rain and cold winds;
• vapor barrier film, fastened from the side of the living room. Its function is only to remove steam; it cannot be mounted outside;
• multifunctional membrane, its name speaks for itself. Despite its apparent convenience, it is used much less frequently.

Benefits of using a windproof membrane

• Environmental friendliness of the material. It is absolutely harmless to both humans and the environment.
• Fire resistance. It is achieved thanks to the special additives that it contains. They allow you to suppress combustion.
• Ease of use, is easy to install at any time of the year and does not require personal protective equipment.

• High technical characteristics. Thus, it is resistant to ultraviolet radiation, moisture resistant, elastic, resistant to mechanical damage and strong temperature changes.
• Duration of operation. Does not lose its properties for many decades.

Depending on what goals they want to achieve, windproof film is attached to the walls of houses, roofs or ceilings of attic floors.

A variety of windproof materials for the home

• Not so long ago, it was not possible to find special windproof membranes on sale, but there was a need for additional material. Therefore, there are several alternative materials that are acceptable for use, although not recommended today. Although their cost is lower, their characteristics are significantly inferior to new high-tech materials.
• Perhaps the cheapest of all possible materials for windproofing walls is glassine. But, despite its low price, its appearance is so unattractive that most often it is made as a temporary solution with further dismantling.
• Until now, in the private construction of small houses, ordinary polyethylene film is used as wind protection. But, due to very low vapor permeability properties, excess moisture can accumulate in the thermal insulation material, leading to dire consequences. Vapor permeability is important not only for the insulation itself, but also for the structure of the walls, especially when it comes to a wooden house.

Manufacturers of vapor-permeable windproof membranes

"Ondulin"

This brand occupies one of the leading positions in the windproof membrane market. It has been known for more than 25 years, during which it has proven the high quality of its products. The hydro-windproof film is sold under the name “Ondutis” and, depending on the purpose and properties, is available in several names:

• S.A. 115 - this insulating material is a vapor-permeable membrane that is capable of retaining moisture and gusts of wind, while not rotting and has high resistance to tearing and the effects of ultraviolet radiation. It is used to protect insulated structures, walls or roofs from the formation of condensation, atmospheric moisture and strong winds;
• A 120- also suitable for use on wall and roof structures. A distinctive feature is a higher resistance to solar radiation. Typically sold in rolls 1.5 m wide and 50 m long.
• A 100- essentially an analogue of the previous one, but cheaper. This is due to lower strength and operating temperature limitations.

"Izospan"

This is an excellent combination of price and quality, so you can buy it at any hardware store. The isospan windproof membrane is quite versatile and suitable for use in insulated roofs covered with any roofing material: metal, natural tiles or bitumen tiles.

In addition to the most famous and popular models, there are products with increased fire-resistant qualities on sale. Special fire retardants in the fabric itself help achieve this; this can protect the structure from fire, both during construction work and during operation. Although its price is higher, in some cases fire requirements allow the use of only such a membrane.

Wind protection isospan was constantly improved, which made it possible to achieve a number of advantages over other analogues:

• compactness and light weight. This is the presence of small rolls that are easy to transport even in public transport;
• convenient sizes. They allow even one person to install the material, but will not create an unnecessarily large number of joints;
• high strength characteristics. They make it possible to work even in unfavorable weather conditions, while the risk of tearing the material is minimized;
• low price. Considering the high consumption of film, this is an important component when choosing;
• elasticity, resistance to UV rays, temperature changes, etc.

Depending on the specific construction goals, you can also choose the most appropriate option from the line presented by the manufacturer:

• Izospan A- This windproof is designed for outdoor use. Attached to the wall of the house under a ventilated facade or under the roofing. Its purpose is to protect structural elements and insulation from wind and water. Improved Izospan A with fire retardant properties is also sold;

• Izospan AM is a two-layer membrane material with high vapor-permeable properties. It will perfectly protect the insulation from condensation, atmospheric humidity and weathering. This is achieved thanks to the special structure of the fabric, the creation of which became possible only with the use of modern technologies. This guarantees high water-resistant characteristics during long-term use in the most extreme weather conditions;
• IzospanAS- although it is the most expensive in its line, since it is a three-layer material, but thanks to the installation method it can reduce costs. So, it can be mounted directly on top of the insulation, without lathing for the ventilation gap.

Windproof membranes "rockwool"

These are vapor-permeable, wind- and moisture-proof materials that are available in different brands. The choice depends on the specific conditions and goals to be achieved. They are all sold in standard rolls of 70 m2.

• Rockwoolroof. This is a two-layer membrane that meets all basic requirements. Successfully removes condensation from the roof and protects the insulation from the wind. When using it, be sure to make a ventilation gap of up to 5 cm. The width of the roll is 1.6 m, so it should be placed on the roof in horizontal strips with a gap of at least 15 cm. The top strip of material is laid with a distance of 5-10 cm from the ridge.

• Rockwoolpartitions. It is chosen if the facades of the house were insulated from the outside. It serves as a protective layer between the thermal insulation material and the outer cladding of siding or any other material. It is attached directly on top of the insulation, pressing it with slats, to which the decorative wall cladding is subsequently attached.
• Rockwoolpartitions with fire retardant additives. It completely retains all the functions and purpose of the previous type, but it contains special flame retardant additives that help protect the structure from fire for some time.

Types of construction membrane films

All membrane materials for house construction can be divided into several main categories. So, depending on the structure of the material and its purpose, there are vapor-permeable and vapor barrier films.

Vapor barrier membrane

• It is always installed only from the inside of the house, protecting the cotton insulation from the accumulation of moisture in it from condensation. For example, when installing an attic roof, the insulation from below is covered with just such a film. It can look different: in the form of a smooth paper film of high elasticity and strength with a glossy side, or in the form of an aluminum film with a foil side.

Tip: the presence of a vapor barrier on the wall and roof structures of the house creates a “thermos” effect. This is good for saving energy when heating, but it also greatly increases the humidity in the room. Therefore, supply and exhaust ventilation systems must be installed in them.

• To protect metal roofing materials, such as metal tiles or corrugated sheets, special membrane materials are produced. These films have an anti-condensation coating that protects the metal from corrosion. The principle of its operation lies in the structure of the coating on one of the sides - it is rough to the touch, since it is an adsorbent layer that absorbs condensate rising from the room. A ventilation gap of 2-5 cm is left between such a membrane and the insulation.

Vapor-permeable windproof membranes for walls and roofs

• They are used outside buildings on top of insulation under cladding or roofing material. In addition to the fact that it successfully protects soft insulation from damage by the wind, it also provides an additional waterproofing layer. Since windproof membranes are a kind of buffer between thermal insulation and the external environment, it is important that they allow all possible moisture from the room to pass into the ventilation gap. This is possible due to the presence of very small perforations, which are invisible to the naked eye. It follows from this that the higher the vapor transmission capacity of a windproof membrane, the more efficiently it will work. According to this principle, it is divided into: diffusion, superdiffusion and pseudodiffusion.
• Pseudo-diffusion materials in most cases are used in roof construction. This is due to their good waterproofing properties and successful operation with a properly organized ventilation gap. But it is not recommended to lay such a windproof membrane on facades due to its low vapor permeability characteristics. Its pores are so small that they can easily become clogged with dust during strong air currents and stop working.
• The best windproof membranes for the walls of the house are diffusion and superdiffusion. Their vapor-permeable properties are so good that you don’t have to worry about clogging. Due to the large number of fairly large pores, manufacturers guarantee the correct operation of such materials even without installing lathing on top of them for ventilation.

• It is worth mentioning separately about this type of windproof films, such as volumetric diffusion membranes. This is an excellent option for roofing work. They are quite dense mats up to 3 m in length and about 8 mm in thickness. Such volumetric polypropylene slabs are an independent layer that separates the insulation and roof covering without additional ventilation. This guarantees high-quality removal of condensate formed under the roof, extending its service life. To fasten it, ordinary nails are used, but the base for it can only be a solid covering, for example, made of plywood.

Installation of a windproof membrane. FAQ

• Which side should the windproof membrane be attached to?? If the house is insulated with mineral wool, then it is attached from the outside directly on top of the insulation. The same applies when working on an insulated roof. If the roof is not insulated, then instead of a wind barrier, a vapor barrier is attached to the bottom of the rafters. When the walls of the house are insulated only from the inside, then a vapor barrier film is installed only on the side of the room.
• Which side is the right way to lay the membrane?? As a rule, all membrane fabrics have a front side, which is quite difficult to distinguish and requires a long look. But you can’t make a mistake, since how it works will depend on the location. Thus, the roofing anti-condensation windbreak is attached with the absorbent side to the inside of the room. Today, well-known manufacturers of diffusion materials have begun to mark one of the sides and indicate in the instructions on the rolls exactly how it should be positioned.

• Is a ventilation gap necessary? In most cases it is needed. For example, when installing a vapor barrier on the side of the living room, a gap of 2-3 cm must be left between it and the drywall. But windproof diffusion materials can be attached without additional ventilation between the insulation, but it is necessary to do so between the finishing cladding of the building. The slatted frame is mounted vertically so as not to obstruct air flow. The roofing anti-condensation film must have a 5 cm section of ventilation on both sides.
• How much overlap should the windproof membrane be made? The most well-known manufacturers make a marking tape on their products that indicates the optimal overlap size. For walls, in most cases, it varies from 10 to 20 cm. But when installing a roof, this indicator depends on the degree of roof slope; the lower the slope, the greater the overlap should be left. In the area of ​​the junction with the ridge, the wind protection should have an overlap of at least 20 cm, and at the valleys up to 30 cm. Often, in these places it is recommended to mount an additional layer in the form of a strip with an overlap of 40-50 cm on both slopes.
• Is it necessary to glue the joints of the windproof membrane? This is a mandatory condition that is prescribed by all manufacturers. This is the only way to achieve absolute tightness of the joint. Any self-adhesive tapes are suitable for these purposes, but it is best to use reinforced construction tape. Although its price is much higher than regular paper, it guarantees excellent performance for many decades. It can also be used to repair a break. But first, put a gasket inside in the form of a piece of wind protection, and then glue everything.

• How to attach a windproof membrane for your home? For tension and temporary fixation, a construction stapler is used. But this is only a temporary measure; slats must be firmly screwed on top, which will serve as a lathing for further cladding work. But with further arrangement of curtain facades, the work will be more labor-intensive. First, brackets for hanging panels are attached to the wall, after which slabs of heat-insulating material are mounted on dowel-nails with mushroom caps. After this, a windproof membrane is stretched over the top and, applied to the wall, slots are made for each bracket. And immediately, directly through the heat-insulating material, they are attached to the wall using similar mushroom nails. Their number must be at least 5 pcs/m2. If it is not difficult to nail a counter-lattice along the perimeter of the windows, then at the joints with pipes, antennas, and ventilation ducts, the edges are glued with double-sided tape or special rubber adhesive.

• How long can the windproof membrane be left open? Although manufacturers claim that their materials are resistant to ultraviolet rays, this period is limited. So, after 5-6 months the material begins to “age” and lose its properties. Therefore, it is recommended to cover the windbreak with cladding as soon as possible after its installation. And also, if the windbreak is exposed to prolonged rain, it gets wet and begins to leak water to the insulation and to the very structural elements of the house. Therefore, it is more convenient to do each wall separately, installing all layers of cladding at once, rather than the entire house in stages.

Wind protection for a frame house is a mandatory element, since without it you risk getting a frame house blown by all the winds. The frame wall pie consists of several elements, each of which performs some kind of load: insulation reduces heat loss through the frame wall, frame racks form the load-bearing frame of the house, external cladding creates an outer shell and stabilizes the structure building. Wind protection functions:

1) protection of a frame house from atmospheric moisture, which is why sometimes you may come across the term wind and water protection;

2) block the ventilation of the house from the outside in weak spots (double and triple boards of racks and trim;

3) ensure free escape of steam from inside the house through the insulation to the outside.

To fulfill all these requirements, there are special membranes and films that do not allow outside air to freely penetrate into the house, but do not prevent steam from escaping from the house to the outside.

Wind protection is placed on the outer surface of the frame wall in all cases, except for finishing using the “wet facade” technology. That is, a windproof membrane must be attached to the surface of plywood or osb/osp, then work on exterior finishing: siding (vinyl, fiber cement, wood), brickwork, lime-cement plaster, etc. A ventilation gap is formed between the wind protection and the external finishing of the facade due to the sheathing or the indentation of the brickwork from the frame wall by 25-50 mm.

Attaching the windbreak is easy. Films from different manufacturers are usually produced in rolls 1.5 m wide, are tear-resistant and can be easily stapled to the surface of the outer skin of a frame house.

If you need to mothball the construction of a frame structure for the winter, then temporary installation of an inexpensive windproof film will solve this problem.

This is exactly how I installed wind protection for the winter season, when it was not possible to start installing the “wet facade” due to low temperatures. I attached the windproof film from a regular ladder with a stapler in just a few hours. Before the façade work, the film was carefully removed and used further as a covering material for boards on the street.

The question of choosing a brand and manufacturer of wind protection is directly dependent on your budget. In my opinion, Tyvek is the best material in terms of quality, but if your budget is limited, you can use Izospan A, Izovek, etc.

A big mistake is to install a windproof film from the inside of the insulation, since its vapor permeability parameters allow steam to freely pass through this barrier and condense in the insulation.

There is also an opinion that using ecowool or polystyrene foam as additional insulation eliminates the need for wind protection. However, it should be remembered that neither ecowool nor PSBS solve the problem of airflow between double and triple boards of trim and frame racks. It's not worth the risk. The cost of windproof film and installation work is low, so it would be more correct to install it.

If you choose a “wet facade” exterior finish, the wind barrier is a layer of finishing plaster that reliably protects the facade from rain and wind.

Under the layer of lime-cement plaster, 2 layers of wind / water protection are laid. The inner layer is ordinary wind protection, the outer layer is glassine with high vapor permeability.

It should be remembered that the windproof film can be installed for the insulated bottom and insulated roof. The installation principles are the same as for frame walls. Wind protection is the outer membrane.

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