RR
RoofRunner Synthetic Felt Underlayment
Roof Underlayments
MPN: RR
RR
MFG #: 635716964546
RoofRunner™ is a lightweight, synthetic polymer-based underlayment that 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.
It's large roll size - 4 feet wide x 250 feet long - helps speed application.
RoadRunner conforms to physical requirements both ASTM D226 and D4869, UL 790 / ASTM E108 Class A Fire Resistance with Class A Roof Shingle, and ICC-ES AC188.