FL298 – CertainTeed, LLC (formerly GCP Applied Technologies Inc.)
Florida product approval FL298-R11 for Roofing Products – Underlayments, as listed in ProdApproval’s data as of Sep 29, 2026.
- FL#
- FL298-R11
- 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 FL298-R11
| Approval # | Model | Description | Design pressure | Wind-borne debris | HVHZ | Outside HVHZ |
|---|---|---|---|---|---|---|
| FL298.1 | CertaSeam Roof Tape | ASTM D 1970, self-adhering tape with nominal width of 4-in. | N/A | N/A | Yes | Yes |
| FL298.2 | Grace VYCOR Ice & Water Shield, VYCOR Ice & Water Shield, Grace VYCOR Ice & Water Shield HT and VYCOR Ice & Water Shield HT | ASTM D 1970, self-adhering underlayments for use in steep slope roofing | N/A | N/A | Yes | Yes |
Fill a spec sheet with FL298
On the contractor form, go to the Roofing Products – Underlayments row and type 298 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.