● ActiveHVHZ approvedLast checked Oct 21, 2026

Henry WIP Self-Adhered Underlayments (WIP 100, 250 HT, 300 HT, GRIP)

Florida product approval and Miami-Dade NOA.

Check: Not approved under tile; for shingles, shakes, non-structural metal, metal shingles and slate, with max exposure 30 days (WIP 100), 90 days (WIP GRIP) or 180 days (250 HT, 300 HT).

FL #FL6785
Miami-Dade NOA25-0606.03
NOA expires08/05/2030In 46 months

Approval details

Manufacturer
Henry · 336 Cold Stream Road, Kimberton, PA 19442
Category
Roofing · Underlayment · Self-adhered SBS
Approved in HVHZ
Yes
Deck type
Wood
NOA approved
07/31/2025 · replaces NOA 24-0606.02

Official documents

Verify on floridabuilding.org ↗

Products this NOA lists

WIP 100 · WIP 250 HT · WIP 300 HT · WIP GRIP

Quick answers

What is the FL number for Henry WIP Self-Adhered Underlayments (WIP 100, 250 HT, 300 HT, GRIP)?

FL6785 (HVHZ). The Miami-Dade NOA is 25-0606.03.

Is Henry WIP Self-Adhered Underlayments (WIP 100, 250 HT, 300 HT, GRIP) approved in the HVHZ?

Yes, on wood decks. The NOA expires 08/05/2030.

Public record. Always verify on the official source before you permit.