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Model 902018 is for 8 foot tall walls and is 50 feet long
Unlike traditional vapor retarder, membrain helps prevent mold by sensing and adapting permeance to varying humidity throughout the year to keep the wall cavity dry
For use with un-faced insulation as a vapor retarder in climate zones where one is required
Prevents moisture vapor from entering the wall cavity in the winter and allows any moisture buildup to escape the wall cavity in the summer
Installs like poly with an extra level of moisture protection
CertainTeed 902018 8'4 x 50' Smart Vapor Retarder Barrier Helps Prevent Mold Better Than Poly sheeting Use with unfaced Insulation Perfect for remodeling B017D1USLY