Owens Corning

Seal.

Helps Create a Water-Proof Barrier

Owens Corning® ProArmor® Synthetic Roof Underlayment with Fusion Back Coating Technology™ is strong, durable and repels water unlike 15 lb felt. It’s also light, easy to install and contributes to safe working conditions.

  • Dual-surface slip resistance: Fusion Back Coating Technology™ paired with a 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
  • Up to 90 day UV exposure
  • 10-Year Limited Warranty*
  • For use under asphalt and metal shingles

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

Download Brochure
Photo of a contractor on a roof installing ProArmor® Synthetic Roof Underlayment

Specifications & Literature

Technical Information

Roll size

10sq.

Length

286 ft.

Width

42 in.

Weight

25 lb.1

Coverage (with 3-in. overlap)

929 sq. ft.

Exposed Color

Light gray

Surface Construction

Nonwoven

1. Includes core weight.
* 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.
ASTM 108/UL 790, Class A Fire Resistance - Underlayment is tested as part of a roof assembly that includes wood decking, underlayment and asphalt shingles.

Applicable codes and standards

  • ASTM D226
  • ASTM D4869
  • ICC-ES AC188
  • ASTM E108/UL 790, Class A Fire Resistance

Total Protection Roofing System®

Total Protection is more than shingle deep

It takes more than shingles to protect your home. It takes an integrated system of components and layers designed to help perform in three critical areas.

  • SEAL Helps create a water-proof barrier
  • DEFEND Helps protect against nature's elements
  • BREATHE For balanced attic ventilation
Excludes non-Owens Corning® roofing products such as flashing, fasteners and wood decking
See the System
Find a Contractor

Roofing Products & Contractors

Where to Buy
Find a Contractor
Contact Us

Contact Us

Even though we’re a global company, we’re always ready to answer your questions. Call to speak with an Owens Corning representative so you can start your project right away.