PrimeSource Building Products. Lightweight and durable, Grip-Rite House-Wrap is made of woven high-density polyethylene and is coated on both sides. Protecting sheathing and stud walls against bulk water intrusion, the material simultaneously allows harmful vapors to escape the wall cavity, preventing mold and mildew growth. The translucent House-Wrap allows framing materials to be easily located. Choose from a variety of roll sizes to fit jobsite needs. 800.676.7777. www.grip-rite.com.