Roof Vapour Barrier Membrane

That reduction of air and moisture infiltration can then help improve roof longevity.

Roof vapour barrier membrane.

The purpose of a vapor retarder is to minimize or reduce water vapor diffusion into a low slope roof or wall system. Self adhesive air and vapor barrier membrane blueskin sa is a self adhering membrane consisting of an sbs rubberized asphalt compound laminated on a blue polyethylene film. There is often confusion between air barriers and vapors retarders. When discussing air barriers roofing membranes and the building envelope another important topic comes to mind.

The purpose of vapour barriers. Typically a vapor retarder has to have a perm rating of 1 0 or less to be successful. A vapor retarder is a material or system that is designed as part of the roof system to substantially reduce the movement of water vapor into the roof system where it can condense. Show the product.

Air and vapor barrier membrane redzone. Everyone knows that water in roof systems is never a positive. Its purpose is to help prevent water vapour from reaching building walls ceilings attics crawlspaces or roofs where it can condense and cause building materials to rot or grow mould. Certainteed s membrain continuous air barrier smart vapor retarder is the industry s most advanced technology to create a better performing home.

Sopravap r is composed of a proprietary formulation of elastomeric styrene butadiene styrene sbs polymer modified bitumen. A vapour barrier is an important component in building construction. Damage from water condensation due to water vapour movement called water vapour drive can wreak havoc on even the sturdiest of built structures and threaten the effectiveness of insulation. Sopravap r is an sbs modified bitumen vapor barrier for use in approved multi ply membrane and flashing assemblies.

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