Reduces Air Infiltration

Tyvek® helps stop drafts from passing through walls. Air penetrates every crack and crevice where two building materials meet. Siding alone can't stop air infiltration. Even insulation doesn't stop air from moving through a wall. In fact, when air moves through insulation, effective R-value drops significantly. When air gets in, heaters and air conditioners work harder to maintain constant temperatures. Tyvek® under the siding acts like A WINDBREAKER FOR THE HOME...keeping energy robbing air out...keeping families comfortable inside.