Tpo Roof Vapor Barrier

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.

Tpo roof vapor barrier.

Insulation stops and back nailing nailing strips. Can be used on concrete plywood exterior gypsum densdeck prime securock or other approved substrates. Everyone knows that water in roof systems is never a positive. The caveat is that the vapor retarder needs to be sealed at all perimeters and penetrations and tied to the wall air barrier so air does not bypass the vapor retarder layer.

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. Used as an air and vapor barrier direct to metal decking. A loose laid vapor barrier is just a big sheet of 6 mil plastic that is rolled out prior to the insulation layers. Phased construction temporary roofing 1 03 vapor retarder air barriers.

Typically a vapor retarder has to have a perm rating of 1 0 or less to be successful. This vapor if left unchecked can wet the insulation and over time will reduce the r value of the insulation and lead to mold. Resistant to foot traffic the engineered composition of v gard provides high resistance to static loading and dynamic impact. Gaf sa vapor retarder is composed of a proprietary formulation of elastomeric styrene butadiene styrene sbs polymer modified bitumen in combination with a high tack self adhesive.

A 15 mil composite reinforced aluminum coated poly with a self adhering sbs. Building owners prefer enverge air and vapor barrier as a sustainable option for their buildings due to the reduced maintenance costs attributed to moisture and. Gaf sa vapor retarder is an sbs modified bitumen vapor retarder for use in approved gaf roof assemblies. 40 mil composite designed as a temporary roof during prolonged re roofing projects or as a vapor barrier under all carlisle roofing systems.

For any warrantable 20 year ultraply tpo roof system the ultrablend system is an option for wall flashings and. It is therefore suitable for most roofs. The vapor barrier protects the roof insulation from the vapor included in the interior air. That reduction of air and moisture infiltration can then help improve roof longevity.

Firestone enverge air and vapor barrier is an asphalt based self sealing wall barrier that provides energy savings and contributes to better air quality for building occupants.