The vapor barrier film is made of polymer material as the substrate, and coated on it to make the material have good waterproof performance and air permeability. Generally, it is used together with waterproof and breathable membrane on steel structure (or wood structure) roof or wall, and laid on Insulation cotton The lower part can prevent the moisture of insulation cotton from penetrating into the building and keep the building dry. The air barrier film is waterproof, moisture-proof, impermeable, and can isolate water vapor from passing through.
Performance&Application:
1、 It is laid on the foundation layer to strengthen the water tightness of the building and prevent indoor moisture from penetrating into the insulation layer, so as to protect the insulation layer from erosion.
2、 Used together with the waterproof and breathable membrane above the insulation layer wall Or the roof can achieve excellent water vapor isolation effect, and enable the water vapor in the enclosure to be discharged smoothly through the waterproof and breathable membrane to protect the thermal performance of the enclosure structure, so as to achieve the purpose of energy conservation.
The waterproof air barrier film has a good waterproof performance, which can effectively block the wind, rain and indoor invasion, effectively block the invasion of cold air, and has the function of heat preservation and energy conservation. And other The supporting use of thermal insulation materials can effectively prevent water vapor from invading the thermal insulation layer, form an integrated protection for the thermal insulation layer, ensure the effectiveness of the thermal insulation layer, so as to achieve the role of continuous energy conservation and improve the durability of the building. The vapor barrier film has the functions of impermeability, waterproof, moisture-proof, etc. The vapor barrier film is laid between the roof base course and the insulation layer, which can strengthen the air tightness and water tightness of the building, and slow down the emission rate of water vapor and indoor moisture in the concrete structure to the insulation layer. When used together with the waterproof vapor permeable membrane above the insulation layer, the vapor barrier membrane can effectively discharge water vapor, protect the thermal performance of the enclosure structure, avoid the breeding of roof mold, and improve the indoor air quality. So as to save energy consumption. The material of the vapor barrier is required not only to be waterproof, but also to isolate the penetration of steam, so it is specified that the vapor barrier should be made of materials with good air tightness and water tightness. According to the practice, the vapor barrier is buried and pressed by the insulation layer. In order to improve the deformation resistance of the base course, the coiled material of the vapor barrier should be paved in an empty manner.
