Owens Corning® ProArmor™ Synthetic Roof Underlayment with Fusion Back Coating Technology is strong, durable and repels water unlike #15 felt. It’s also light, easy to install and contributes to safe working conditions.
- Dual-surface slip resistance: Fusion Back Coating Technology paired with an industrial non-woven surface provides excellent walking conditions during shingle application even on steeply pitched roofs
- Repels moisture and helps provide protection against water infiltration
- Resists stretching and tearing around fasteners
- Available in 42-inch lightweight rolls for easy installation
- 10-Year Limited Warranty*
- For use under asphalt shingles only
Coverage per Roll |
(with 3-in. overlap) 929 sq. ft. |
Design |
Exposed Color Light gray |
Surface Construction |
Industrial Nonwoven |
Roll Size |
286 ft. x 42 in. |
Nominal Weight |
per Roll** 25 lb. |
Applicable Standards
- ICC-ES AC-188# – Criteria for Roofing Underlayments
- ASTM D 226
- ASTM D 4869
- ASTM E 108/UL 790 (Class A Fire Resistance)***
* See actual warranty for complete details, limitations and requirements.
# International Code Council Evaluation Services Report.
** Includes core weight.
*** Underlayment is tested as part of a roof assembly that includes wood decking, underlayment and asphalt roof shingles.