Housewrap

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• Housewrap — defines all synthetic replacement materials for sheathing tar paper. These materials are all lighter in weight and usually wider than asphalt designs, so contractors can apply the material much faster to a house shell. Housewrap functions as a… …   Wikipedia

• Tar paper — is a heavy duty paper used in construction. Tar paper is made by impregnating paper with tar, producing a waterproof material useful for roof construction. Roofing felt, one common type of tar paper, is a glass fiber or polyester fleece… …   Wikipedia

• Tyvek — (TIE veck) is a brand of flashspun high density polyethylene fibers, a synthetic material; the name is a registered trademark of the DuPont Company. The material is very strong; it is difficult to tear but can easily be cut with scissors or any… …   Wikipedia

• DuPont Experimental Station — Aerial photo of the Dupont Experimetal Station in the summer of 1997. The Brandywine Creek is in the immediate foreground and right. The stone building in the center of the picture is the original clubhouse of the Dupont Country Club which has… …   Wikipedia

• Air barrier — Air barriers control air leakage into and out of the building envelope. This allows for more durable buildings as moisture is kept out and also results in significant energy savings. Air barrier products may take several forms: *Mechanically… …   Wikipedia