At American Roofing & Renovation, we use RoofRunner™ lightweight synthetic polymer-based underlayment outperforms felt and outclasses other synthetics. Designed for use on roof decks as a water-resistant layer beneath asphalt roofing shingles, this scrim-reinforced underlayment includes a special top surface treatment that provides excellent slip resistance, even when wet. Large roll size – 4 feet wide x 250 feet long – speeds application.
Roofing Underlayment
CertainTeed RoofRunner™ Underlayment
Why RoofRunner™?
When RoofRunner™ is used in conjunction with a CertainTeed roofing product, RoofRunner will take on the same warranty period as the shingle above it. When RoofRunner is used with a non-CertainTeed product, the limited warranty period will be 10 years.
Features
- Physical requirements both ASTM D226 and D4869
- UL 790 / ASTM E108 Class A Fire Resistance with Class A Roof Shingle
- ICC-ES AC188