Vapor barrier for walls of wooden houses

One of the main qualities of the wooden houses of the owners of the house called the ability to "breathe." Most often, behind these words lies the banal lack of insulation at home, when air enters the house through the cracks. Through them, the heat leaves the premises.

Today, the price of gas, electricity and solid fuel is constantly increasing, and because residents of homes trying to minimize heat loss through thermal insulation of houses reliable.

In addition, In vogue focus on ecology, economy and aesthetics of the home.

Thus, a typical wall of the house has become a multi-layer cake made of beams, insulation, hydro and steam insulation and sheathing.

What is dangerous for condensate insulation and the walls of a wooden house?

The accumulation of vapor in the insulation leads to a deformation that reduces its quality characteristics, and mold and fungus, formed by condensation eventually kill the tree.

If insulation is used mineral wool, moisture absorbing its thickness gradually decreases, the form - deformed, and its insulating properties are reduced, which means that the insulation of houses mineral wool vapor barrier is required to use layer.

If you use a foam that is impervious to moisture, then use a vapor barrier material is not necessary.

What types of vapor barrier?

• Polyethylene (with or without reinforcement). Cheap film, which will last 15-20 years. The main drawback - total impermeability to air and moisture, because of which it can accumulate in the condensate.

• Polypropylene. More durable film type, due to the presence of cellulose fibers thereon condensate is formed.

• The laminated plastic film coated with aluminum. On such a film is applied a layer of aluminum foil, which reflects the heat inside the house.

• Breathable membrane. Its name says it all: thanks to the perforation the material is highly breathable and provides normal paroobmen no condensation and rotting wood and insulation.

Good luck in building!
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