Your roof is a big investment. Help protect it right from the start against water damage in the attic, which can cause mold growth and rotting deck boards. Deck Defense® High Performance Roof Underlayment features a durable, synthetic construction that works with your shingles to help shield your home from moisture infiltration.
* See actual warranty for complete details, limitations and requirements. ** Special application required for extended exposure. See installation instructions. *** Underlayment is tested as part of a roof assembly that includes wood decking, underlayment and asphalt roof shingles.
§ Excludes non–Owens Corning™ roofing products such as flashing, fasteners and wood decking.
**** weight includes the core weight
LEED® is a registered trademark of U.S. Green Building Council.