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.
INSTALLATIONApplying a roof system correctly is essential to the warranty and performance of the roof. Please refer to the installation instructions for complete details.
WARRANTY DETAILSWhen 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.