Description:
G.A.P. WaterGuard™️ All-Purpose Synthetic Roofing Underlayment is a polypropylene, two-side coated woven fabric containing a patented slip resistant surface (U.S. Patent # 7745353).

Documents
Product Technical Data Sheet
Installation Instructions
Warranty
FAQ

Product Use:
This product is used as a secondary roofing protection, mechanically attached to the roof sheathing under the primary roofing material.

Polypropylene woven scrim (UV stabilized), 1.2 mil/1.0 mil average coating weight (beige top/grey bottom), total weight 3.6 oz./yd2 (122 g/m2) +/- 5%, and an overall thickness of 8 mil (ASTM D1777). Rolls have a 2” core, 48” (width) x 250’ (length) and weigh approximately 25 lb. per roll.

Material Performance: