TRI-BUILT® Spec Grade Plus Roofing Underlayment is a high strength woven synthetic roof underlayment that can save you 50% in labor and time expense, compared to #30 felt.
• The most slip resistant underlayment in the industry.
• 20 times stronger than felt-wont tear-off or buckle when wet.
• 10X lighter per square and 20X stronger than #30 felt.
• 10 squares per roll weighing only 28 lbs. (250 ft. roll)
• 5 Squares per roll weighing only 14 lbs. (125 ft. roll)
• UV resistant and can be exposed for up to 6 months.
• Light gray color reduces heat and provides cooler working surface.
• Pre-printed nailing pattern speeds installation.