Vapor Retardant Addresses Moisture Concerns
A newly introduced vapor retardant that breathes and allows excess moisture to escape from wall cavities will help minimize builders’ concerns over excess moisture trapped in walls and roofs leading to mold and liability problems, according to CertainTeed Corporation.
Headquartered in Valley Forge, PA, CertainTeed is a member of the National Council of the Housing Industry — the Supplier 100 of NAHB.
MemBrain™ is the first product of its kind to be introduced in the U.S., its manufacturer says. The sheeting has been designed for use with un-faced, vapor permeable mass insulation (fiber glass and mineral wool) in wall and ceiling cavities.
The product is ideal for areas with seasonal changes in temperature and humidity, says Glenn Singer, manager of building sciences for CertainTeed’s Insulation Group.