Roof Vapor Retarder Cost

For example sherwin williams master touch latex vapor barrier primer 1 sells for about 80 for a five gallon pail.

Roof vapor retarder cost.

Everyone knows that water in roof systems is never a positive. Can be used as a base ply or air and vapor barrier. The vapor retarder roof coating guarantees to prolong the life of the roof and reduce cooling energy costs with its undefeatable technology. Most roof membranes are class i vapor retarders.

Vapor barrier paint is usually white and used as an undercoat primer. 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. Sopravap r is composed of a. 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.

Sopravap r is an sbs modified bitumen vapor barrier for use in approved multi ply membrane and flashing assemblies. That reduction of air and moisture infiltration can then help improve roof longevity. If you have designed or built a low slope roof with a single ply membrane at some point you will be confronted with this simple question. Certainteed membrain 12 ft.

Set your store to see local availability add to cart. A 90 mil sbs modified asphalt base sheet can be used in multiple ply systems as an air and vapor barrier or a temporary roof for up to 60 days. Premium smooth surfaced sbs torch applied membranes reinforced with fiberglass mat. A vapor retarder is commonly installed on the warm interior side of a roof or wall.

In a low slope roof assembly the vapor retarder is normally installed under the primary roof insulation. Air barrier with smart vapor retarder model 42821041 233 54 233 54. Suremb 90tg 120tg base ply. Plywood 1 4 thick douglas fir exterior glue is a class ii vapor retarder with a perm rating of 0 7 perms.

Certainteed membrain 8 ft. Out of stock online. The same plywood with interior glue is a class iii vapor retarder with a perm rating of 1 9 perms. Vapor retarder roof coating.

Air barrier with smart vapor retarder model 42821017 190 43 190 43. With considerable costs at stake the prospect of omitting a vapor retarder is always a precarious notion and one that merits careful consideration of the project specific dynamics at play. Astm d2178 astm e96. Is the vapor retarder necessary.

Cold adhered asphalt adhered. Vapor retarder paint costs about 20 40 a gallon or 60 90 for a five gallon pail. Roofing vapor retarder air barrier. Typically a vapor retarder has to have a perm rating of 1 0 or less to be successful.