Windproof, waterproof, and breathable sheet. Strong, lightweight and durable outer wall substrate Excellent moisture permeability and allows moisture to escape inside the wall to prevent condensation. 100% Polyolefin protects your home from rain and other elements Prevents cold air from entering and provides a good amount of insulation and preserves the temperature of the room. Set of 2 unprinted solid color 164 ft (50 m)