Put on waterproof breathable film and vapor proof film to prevent dews on metal roof

Kangda waterproof breathable film can effectively solve dews on metal roofing

Definition of metal roofing:

Metal roofing usually refers to the roof envelope system that adopts pressure metal plate or metal sandwich plate to connect with the support system through the fixed bracket and fastener, and transmits the roof load to the main structure through the support system, and the Angle between the roof plate and the horizontal direction is less than 75°.

According to the principle of condensed water generation, the corresponding construction layer is set to prevent the airflow containing water vapor from moving between the construction layer of the roof system. In the above construction layer, the steam insulation layer (steam insulation film) and waterproof breathable film (water vapor permeable film) are extremely important structural layers.

Definition of vapor barrier film:

vapor barrier film:Prevent water vapor from entering the insulation layer, avoid the thermal resistance drop and condensation phenomenon when the moisture content of the insulation material increases.

Definition of waterproof breathable film:

Waterproof breathable film or waterproof vapor permeable layer: with the functions of windproof and waterproof vapor permeable, it can block the external water and air airflow in the building, prevent the cold wind from permeating, and at the same time, it can drain the moisture vapor in the indoor and wall to the outdoor.

Commonly used metal roofing structure is too simple, usually only metal panel, insulation layer (including aluminum foil veneer), metal floor. Such a structure cannot meet the most basic requirements of air tightness and water tightness of the assembly enclosure system. When the temperature difference between the inside and outside of the building and the humidity reaches a certain state, condensation will occur in the system and condensed water will be generated. Choose waterproof breathable film, diaphragm choose manufacturers, choose credibility.

No waterproof breathable film and vapor barrier film were selected, resulting in condensation

The metal roofing special waterproof breathable membrane, please choose kangda brand, nantong famous brand products, professional waterproof breathable membrane manufacturers, 20 years of production experience in waterproof breathable membrane. Keep away from dews on the roof, please put on kangda waterproof breathable film and vapor proof film on your metal roof.