Products / Atlas Summit Synthetic Underlayment

Summit is Atlas's lightweight synthetic roof underlayment, sold as an alternative to No. 15 asphalt-saturated felt, with a woven polymeric scrim, a slip-resistant bottom coating, a textured non-woven top surface and pre-printed lay lines, offered in 10-square rolls. Atlas's product page lists 180-day UV exposure and performance from -40 to 240 degrees F.