Our RoofGard-Cool Grey rolls are lighter and easier to handle making it faster to roof install. The synthetic, non-breathable material provides a superior slip resistant surface and won’t crack, peel or delaminate. It is easy to install around vents, dormers, and other roof structures. And since it’s grey instead of black, it absorbs less of the sun’s radiant heat. This makes it much more comfortable for your installers in hot weather, keeping the air temperature above the roof deck cooler. UV-stabilizers mean RoofGard-Cool Grey can be left exposed, for up to six months without break-down or performance loss. Lay lines every 1″ and in shingle course alignment.