The only practical way to protect the ceiling from moisture is the installation of waterproofing. This is a great way not only to protect the ceiling from moisturizing, but also from the concentration of moisture in it. Especially bad when moisture is concentrated in the ceiling insulation. In this case, its properties in the field of heat maintenance sharply fall. Therefore, it is very important to carry out waterproofing. The ideal option is to establish a material combining both functions. It is also important to understand that there are different materials for isolation from moisture. Some provide good waterproofing, others — vapor barrier. The internal components of the walls need to be decorated with vapor barrier materials. To insulate the insides of the walls from steam, reinforced films are used, with foil applied.
Outwardly, polypropylene films are often installed, which provide good waterproofing. With their structure, they very much resemble polyethylene films, but more durable and better tolerate ultraviolet radiation. Sometimes fogging of such a film from the inside occurs. This happens in cases where the room is not heated, and the roof has a metal base, or mainly made of metal. The fact is that such a material as metal, in this case, significantly cools the air, thereby contributing to the occurrence of condensate. In order to avoid the occurrence of such troubles, it is advisable to apply viscose. Such a coating perfectly copes with absorption and retention of moisture. Vicos will get rid of her independently, immediately after the end of the excess in condensate. It is extremely important to understand that these films are one -sided, therefore it is of great importance, which side to install them inside the house, and which out. Polypropylene films must be placed with a smooth plane in the direction of the house, and with a skewer to heaters. At the same time, in the process of installation, you need to leave the space for ventilation.
Diffuse membranes do an excellent job of water insulation. But only in one direction, in the other, do they quite tolerate water vapor pass. These membranes belong to materials that can breathe. They are often used for roofs. At the same time, special membranes of three layers are used, each of which performs its own function. The first performs directly, the waterproofing role, the second gives it resistance to ultravioletus, and the third provides strength. They are good to use when arranging attic attic.