Johns Manville SBS Modified Bitumen System over Poured Gypsum Decks

Florida product approval and Miami-Dade NOA.

Check: Poured gypsum decks only; spot-attached systems limited to -45 psf; fire classification is not part of this acceptance. HVHZ approval is from the Miami-Dade NOA; FL2948 is the statewide (non-HVHZ) approval.

Approval details

Manufacturer

Johns Manville · 717 17th Street, Denver, CO 80202

Category

Roofing · Low-slope · Modified bitumen (SBS) system

Approved in HVHZ

Yes

Deck type

Poured Gypsum

NOA approved

07/02/2026 · replaces NOA 21-0303.21

Official documents

Products this NOA lists

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