● ActiveHVHZ approvedLast checked Oct 21, 2026

Johns Manville ENRGY 3 Polyiso and Roof Insulation Boards

Florida product approval and Miami-Dade NOA.

My product sheet: 0 →

Check: Approved only as part of a roof cover's NOA assembly; multilayer insulation capped at 12 in total.

Miami-Dade NOA24-0610.04

NOA expires02/07/2030In 40 months

Approval details

Manufacturer: Johns Manville · 717 17th Street, Denver, CO 80202
Category: Roofing · Roof insulation · Polyisocyanurate, Perlite and Fiberglass
Approved in HVHZ: Yes
Deck type: Various (per product)
NOA approved: 01/23/2025 · replaces NOA 23-0509.05

Official documents

PDFMiami-Dade NOA 24-0610.04miamidade.gov

Verify on floridabuilding.org ↗

Products this NOA lists

ENRGY 3 25 PSI · Tapered ENRGY 3 25 PSI · ValuTherm 25 PSI · Tapered ValuTherm 25 PSI · R-Panel 25 PSI · Tapered R-Panel 25 PSI · ENRGY 3 · Tapered ENRGY 3 · ValuTherm · Tapered ValuTherm · R-Panel · Tapered R-Panel · ENRGY 3 FR · Tapered ENRGY 3 FR · ENRGY 3 FR 25 PSI · Tapered ENRGY 3 FR 25 PSI · ENRGY 3 CGF · Tapered ENRGY 3 CGF · ENRGY 3 CGF 25 PSI · Tapered ENRGY 3 CGF 25 PSI · ValuTherm CGF · Tapered ValuTherm CGF · ValuTherm CGF 25 PSI · Tapered ValuTherm CGF 25 PSI · SeparatoR CGF · ENRGY 3 Foil Faced · Tapered ENRGY 3 Foil Faced · ENRGY 3 Foil Faced 25 PSI · Tapered ENRGY 3 Foil Faced 25 PSI · ProtectoR HD · ProtectoR Foam · Fesco Board · Tapered Fesco Board · Fesco Board HD · FescoFoam · Tapered Fesco Foam · Retro-Fit Board · DuraBoard · DuraFoam · Tapered DuraFoam · RetroPlus Roof Board · Nailboard · Vented Nailboard · FesCant Plus Cant Strip · Tapered Fesco Edge Strip

Quick answers

Is Johns Manville ENRGY 3 Polyiso and Roof Insulation Boards approved in the HVHZ?

Yes, on various (per product) decks. The NOA expires 02/07/2030.

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