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.

Technical Information


  • Dimensions: 48" wide x 250' long
  • Roll Side: 1,000 sq. ft.
  • Coverage: 937.5 sq. ft.


Roof runner confirms to:

  • Physical requirements both ASTM D226 and D4869
  • UL 790 / ASTM E108 Class A Fire Resistance with Class A Roof Shingle
  • ICC-ES AC188


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

Warranty Details

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.

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