Protects R-Value

R-value ratings for insulation are only maintained when air inside your walls stays still and dry. 40% of a home's energy loss results from air infiltration. Opposing forces of inside and outside air pressure cause heat and air conditioning to be virtually sucked from a home - through walls, ceilings, top plates, sheathing joints, electrical outlets - anywhere two building materials meet.

A home wrapped in Tyvek® HomeWrap® will maintain 94% of its installed R-value at an 8 mph wind pressure compared to only 37% for a home without Tyvek® HomeWrap®.