Vapour Control Barrier Roof

We also stock impermeable air barriers to increase air tightness.

Vapour control barrier roof.

A roof design that includes an adhered roof membrane with multiple layers of insulation with board joints offset and staggered over a vapor retarder air barrier helps lower the risk that air and the moisture it carries will infiltrate the roof system. That reduction of air and moisture infiltration can then help improve roof longevity. Vapour control barrier layers about roofing supplies stock supply vapour control barrier layers which are used on warm flat roofs between the decking and insulation to prevent moisture penetrating the insulation layer and compromising it s performance. Classic compact flat roof the most famous double vapor barrier of them all.

The risk of condensation through warm air from the inside of the building coming into contact with cold surfaces in roofs and walls. In fact it is almost a perfect vapor barrier. The roof membrane on the top is clearly a vapor barrier. The goal of vapor barrier strategies is to prevent moisture from collecting and corrupting building materials.

Improperly installed a vapor barrier may actually trap moisture inside a wall while a wall that is more porous can breathe effectively and be less susceptible to long term moisture problems. And the membrane on the bottom is also a vapor barrier.