Non-Vapor Permeable Underlay for Roofing

ALTARON vapor barrier membrane is made of polymer material and laid under the foundation layer, which can enhance the water tightness of the building and at the same time prevent the indoor moisture from penetrating into the thermal insulation layer, so that the performance of the thermal insulation layer will not be affected, and increase the life of the thermal insulation layer.
When the vapor barrier membrane is used in combination with the waterproof and breathable membrane on the insulation layer, it can maximize the water vapor insulation effect of the wall or roof, so that the water vapor inside the enclosure can be smoothly discharged through the waterproof and breathable membrane, which ensures the thermal functionality of the enclosure, and is more energy efficient.
Generally used with waterproof breathable membrane on steel or wooden roof or wall, it is laid underneath the thermal insulation cotton, thus blocking the moisture of the thermal insulation cotton from penetrating into the building, and keeping the interior of the building dry. Waterproof, moisture-proof, anti-leakage, isolate the passage of water vapor.