FL28301 – GAF
Florida product approval FL28301-R2 for Roofing Products – Roofing Insulation, as listed in ProdApproval’s data as of Sep 29, 2026.
- FL#
- FL28301-R2
- Manufacturer
- GAF
- Code version
- 2020 Florida Building Code
- Status in our data
- Approved
- Products
- 3
Official record on floridabuilding.org →Use on a spec sheet →
Verify approval status on floridabuilding.org before submitting.
Approved products under FL28301-R2
| Approval # | Model | Description | Design pressure | Wind-borne debris | HVHZ | Outside HVHZ |
|---|---|---|---|---|---|---|
| FL28301.1 | ThermaCal® 1 Ventilated Roof Insulation Panels | Polyisocyanurate insulation laminated to 1", 1.5", or 2" solid wood spacers (to create an air space) then laminated to APA rated 5/8" plywood. | N/A | N/A | Yes | Yes |
| FL28301.2 | ThermaCal® 2 Ventilated Roof Insulation Panels | Polyisocyanurate insulation laminated APA rated 5/8" plywood, then laminated to 1", 1.5", or 2" solid wood spacers (to create an air space) then laminated to a second layer of APA rated 5/8" plywood. | N/A | N/A | Yes | Yes |
| FL28301.3 | ThermaCal® Non-Ventilated Roof Insulation Panels | Polyisocyanurate insulation laminated to APA rated 5/8" plywood. | N/A | N/A | Yes | Yes |
Fill a spec sheet with FL28301
On the contractor form, go to the Roofing Products – Roofing Insulation row and type 28301 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.