● ActiveHVHZ approvedLast checked Oct 21, 2026
Atlas Gorilla Guard 30 Felt Underlayment
Florida product approval and Miami-Dade NOA.
Check: Mechanically attached base sheet under shingle, shake, metal, slate and tile roofs; max 30 days exposed.
Miami-Dade NOA23-0215.01
NOA expires06/13/2028In 20 months
Approval details
- Manufacturer
- Atlas Roofing · 2100 Riveredge Parkway, Suite 600, Atlanta, GA 30328
- Category
- Roofing · Underlayment · Asphalt-saturated base sheet
- Approved in HVHZ
- Yes
- NOA approved
- 05/18/2023 · replaces NOA Renews and revises NOA 18-0501.06
Official documents
Verify on floridabuilding.org ↗Products this NOA lists
Gorilla Guard Spec 30 · Gorilla Guard 30
Quick answers
Is Atlas Gorilla Guard 30 Felt Underlayment approved in the HVHZ?
Yes. The NOA expires 06/13/2028.
Public record. Always verify on the official source before you permit.