● ActiveHVHZ approvedLast checked Oct 21, 2026
GAF TimberSteel Premium Metal Roofing System
Florida product approval and Miami-Dade NOA.
Check: Wood decks, min slope 4:12, over a Miami-Dade approved self-adhered (ASTM D1970) underlayment; design pressure -97.25 psf field / -116 psf at 3 in. o.c.
FL #FL46590-R3
Miami-Dade NOA25-1027.01
NOA expires11/20/2030In 49 months
Approval details
- Manufacturer
- GAF · 1 Campus Drive, Parsippany, NJ 07054
- Category
- Roofing · Metal roofing · 26 ga galvalume steel shingle
- Approved in HVHZ
- Yes
- Deck type
- Wood
- NOA approved
- 11/20/2025
Official documents
PDFMiami-Dade NOA 25-1027.01miamidade.govPDFGAF Florida approval FL46590-R3, TimberSteel Metal Roof Shinglesgaf.com
Verify on floridabuilding.org ↗Products this NOA lists
TimberSteel Field Shingles · TimberSteel Hip & Ridge Cap Shingle · Cobra Rigid Vent 3 · Trim Pieces
Quick answers
What is the FL number for GAF TimberSteel Premium Metal Roofing System?
FL46590 (HVHZ). The Miami-Dade NOA is 25-1027.01.
Is GAF TimberSteel Premium Metal Roofing System approved in the HVHZ?
Yes, on wood decks. The NOA expires 11/20/2030.
Public record. Always verify on the official source before you permit.