ProArmor™ Synthetic Roof Underlayment

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.
ProArmor™ Synthetic Roof UnderlaymentProArmor™ Synthetic Roof Underlayment
  • 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

ProArmor™ Synthetic Roof Underlayment is part of the Owens Corning® Total Protection Roofing System§.


Roll Length 286 ft.
Roll Width 42 in.
Nominal Weight per Roll** 25 lb.
Coverage (with 3-in. overlap) 929 sq. ft.
Exposed Color Light gray
Surface Construction Industrial Nonwoven
* See actual warranty for complete details, limitations and requirements. A longer limited warranty term applies when ProArmor™ is used in conjunction with Owens Corning® Roofing Shingles.
§ Excludes non–Owens Corning® roofing products such as flashing, fasteners and wood decking.
** Includes core weight.
# International Code Council Evaluation Services Report.
*** Underlayment is tested as part of a roof assembly that includes wood decking, underlayment and asphalt shingles.
² Applies to all areas that recognize Miami-Dade Product Control Section.