FL31331 – Duro-Last (Amrize Building Envelope LLC)
Florida product approval FL31331-R2 for Roofing Products – Single Ply Roofing Sys, as listed in ProdApproval’s data as of Sep 29, 2026.
- FL#
- FL31331-R2
- Manufacturer
- Duro-Last (Amrize Building Envelope LLC)
- Code version
- 2020 Florida Building Code
- Status in our data
- Approved
- Products
- 1
Official record on floridabuilding.org →Use on a spec sheet →
Verify approval status on floridabuilding.org before submitting.
Approved products under FL31331-R2
| Approval # | Model | Description | Design pressure | Wind-borne debris | HVHZ | Outside HVHZ |
|---|---|---|---|---|---|---|
| FL31331.1 | Duro-Last Single Ply Roof Systems for use in FBC HVHZ jurisdictions | Thermoplastic single ply roof systems for use in HVHZ jurisdictions. | +N/A/-1025 | N/A | Yes | No |
Fill a spec sheet with FL31331
On the contractor form, go to the Roofing Products – Single Ply Roofing Sys row and type 31331 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.