FL11098 – CertainTeed, LLC (formerly GCP Applied Technologies Inc.)

Florida product approval FL11098-R5 for Roofing Products – Underlayments, as listed in ProdApproval’s data as of Sep 29, 2026.

FL#
FL11098-R5
Manufacturer
CertainTeed, LLC (formerly GCP Applied Technologies Inc.)
Code version
2023 Florida Building Code
Status in our data
Approved
Products
2

Official record on floridabuilding.org →Use on a spec sheet →

Verify approval status on floridabuilding.org before submitting.

Approved products under FL11098-R5

Approval #ModelDescriptionDesign pressureWind-borne debrisHVHZOutside HVHZ
FL11098.1Tri-Flex 15A mechanically attached, woven polypropylene, ASTM D 8257 underlaymentN/AN/AYesYes
FL11098.2Tri-Flex XTA mechanically attached, woven polypropylene, ASTM D 8257 underlaymentN/AN/AYesYes

Fill a spec sheet with FL11098

On the contractor form, go to the Roofing Products – Underlayments row and type 11098 in the Florida Product Approval # box to fill the row. Walton County users can print a PDF that follows the county’s sheet; see the Walton County Product Approval Specification Sheet guide.