CertainTeed Flintlastic® FR Dual Cap is designed for use as a roofing membrane over various types of substrates for both new construction and reroofing installations. It is suitable for most low sloped roof decks and may be used for roof system flashings including wall treatments, base flashings and field flashings.

Technical Information

CertainTeed Flintlastic FR Dual Cap is produced with a heavy-duty, high performance, non-woven polyester/fiberglass combination mat and a superior grade, modified bitumen compound.

  • Support Mat: Heavy-duty, high performance, puncture and tear resistant, non-woven polyester/fiberglass mat
  • Top Surface: Mineral granules
  • Back Surface: Light sand finish, release agent
  • Weight: 103 lbs. per roll
  • Dimensions: 39-3/8" x 32' 10" (100 sq. ft.)
  • Coverage: One Square
  • Thickness: 4.3mm (169 mils)
  • ASTM D6162, Grade G, Type I

For additional technical resources please refer to the CertainTeed Commercial Roof Systems Manual.


Flintlastic FR Dual Cap is intended for application using hot asphalt or approved cold process adhesives such as FlintBond ™. Rolls should be stored upright, off ground, completely protected from the weather. Roof decks shall be structurally sound, dry, smooth and meet or exceed minimum requirements of the deck manufacturer, local code and CertainTeed.

For detailed installation instructions please refer to the CertainTeed Commercial Roof Systems Manual.

Warranty Details

CertainTeed backs its commercial roofing systems with the confidence of three warranty choices:

  • Limited Product Warranty
  • NDL Roof Membrane Limited Warranty*
  • Full System NDL Limited Warranty*

Owners and specifiers who choose the NDL or Full System NDL warranty options have the added security of manufacturer involvement in the sometimes difficult process of contractor qualifying and workmanship inspection. Consult with the roofing contractor and your CertainTeed commercial roofing territory manager to decide which CertainTeed warranty is best for your building or project.

*NDL warranties are not available on all specifications and are only available through CertainTeed Gold and Silver Star Contractors.

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