The following types of vapor barrier materials can be laid on the walls:

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Vapor barrier materials
It is possible to lay a vapor barrier using various materials. The very concept of "vapor barrier" does not mean that the barrier should completely block the circulation of steam. A modern vapor barrier membrane provides a minimum air flow to prevent the greenhouse effect inside the room.

The membrane retains excess moisture, and the air that was part of the steam is not capable of damaging walls and heat-insulating materials. Vapor barrier materials are able to redirect the air flow to the exhaust ventilation system.

Polyethylene used for vapor barrier


Polyethylene. It is a traditional material for creating a vapor gcash data layer. Such vapor barrier must be attached to the wall with care, without excessive tension. It is important that conditions for film rupture are not created when the season changes. It is necessary to understand that in the absence of polyethylene perforation, this material limits the flow of both steam and air, which creates obstacles to creating a comfortable microclimate in the room. However, perforation no longer provides good vapor barrier of the insulating material and walls. This type of vapor barrier is used less and less in modern construction.
Mastic materials. This material is applied to the wall, allows air to pass through and retains excess moisture. The walls are treated before the final finishing manipulations are carried out. Mastic materials are relatively inexpensive and easy to use.
Membrane films. This type of vapor barrier is the most modern. The film allows air to pass through and stops moisture. The material is characterized by the correct vapor permeability value to ensure acceptable insulation properties. Even cotton insulation materials do not get wet when using membrane films as vapor barriers, retain the ability to normal air exchange and do not lose their performance characteristics. Membrane vapor barrier materials are convenient to use for insulating both frame and wooden walls.
When choosing membrane films, there is often no need to install air gaps.

Advantages of membrane materials
Membrane films are a priority when it comes to choosing a vapor barrier material. Mastics are second in terms of efficiency, and polyethylene films are used relatively rarely in modern construction.

The advantages of membrane films compared to other vapor barrier materials include: