What is a windproof membrane for?

There are opposite opinions among builders - whether a windproof membrane is necessary or not. Some experts are inclined to believe that it is not needed, while others argue that its presence in structures is very important. I am more in favor of using it. But I understand that in construction it is quite possible to do without it. I'll tell you what it is used for, so that you can decide for yourself how much it is needed.

The construction of houses from various materials always takes place so that gaps remain on the facades. They are necessary for the building to "breathe" and not to accumulate condensation. Yet these gaps not only release air and moisture from the inside, but are also not protected from external influences from the outside. Cold, wind, rain and snow - all this negatively affects the structure of the building, reduces the layer of insulation and reduces the operational life of the building. To avoid this, a windproof membrane is used.

A windproof membrane (or rather a hydro and windproof membrane) is used to protect ventilated building facades, load-bearing structures from negative environmental influences - precipitation and other moisture, wind and cold air. It ensures the safety of insulation and structures, making the building dry and warm.

The peculiarity of the windproof film is in its unique composition. The membrane consists of 3-5 layers, which are arranged in such a way that the film does not allow moisture and air to pass from the outside, but does not prevent their removal from the inside. A windproof membrane is used mainly to protect the roof and insulate facades.

The windproof membrane is used for several reasons:

1. To prevent the emission of insulation fibers.

2. To protect the insulation from water, precipitation during the operation of the building.

3. To prevent air filtration to keep indoor heat.

4. For the safety of the insulation from precipitation and external influences during the construction process.

The benefits of windscreen are great, but there are downsides that lead many construction companies to refrain from using it. One of the main disadvantages is the increased flammability of the materials from which the membrane is made. In the case of welding or other work in which a fire or spark is formed, there is a high risk of igniting the membrane, which leads to permanent consequences. For this reason, in some regions of the country, the use of a windproof membrane is prohibited by law.

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