Certainteed 1033 sq. ft. Air Barrier and Smart Vapor Retarder 2 mil Think 10 ft. x 100 ft. VEL-C UPC: 862567000400

UPC: 862567000400

Product Type: Bell Hanger Bit

Sensitivity to pressure changes

A multi-surface cleaner that kills 99

UPC: 082867402005

Certainteed 1033 sq. ft. Air Barrier and Smart Vapor Retarder 2 mil Think 10 ft. x 100 ft. VEL-C UPC: 862567000400Certainteed brings you the MemBrain Roll, a continuous air barrier and smart vapor retarder. The Certainteed MemBrain changes permeability to varying humidity throughout the year. This permeable vapor barrier installation prevents moisture vapor from entering the wall cavity in the winter and allows any moisture buildup to escape the wall cavity in the summer. The Certainteed insulation acts as a permeable moisture barrier and decreases moisture