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FL47091: Duro-Last (Amrize Building Envelope LLC), Waterproofing
2026 code statusReady
FL47091-R2 is listed as Approved under code version 2026.
Last checked against floridabuilding.org: Oct 19, 2026, 11:30 AM ET. See the state record.
Filing record
- 2026 application
- FL47091-R2, Approved (Revision) · state record
- 2023 code approval
- FL47091-R1, Approved · state record
- Submitted
- Aug 20, 2026
- Validated
- Aug 20, 2026
- Pending FBC approval
- Sep 1, 2026
- Approved
- Oct 13, 2026
- Approved for HVHZ
- Yes
- Impact resistant
- No
- Compliance method
- Evaluation Report from a Florida Registered Architect or a Licensed Florida Professional Engineer
- Quality assurance
- UL LLC
- Validated by
- John W. Knezevich, PE
Products under this number (2)
| # | Model / description | HVHZ | Impact |
|---|---|---|---|
| 47091.1 | Duro-Shield Waterproofing Systems (HVHZ) Pedestrian and vehicular deck waterproofing systems for use in FBC HVHZ jurisdictions. | Yes | N/A |
| 47091.2 | Duro-Shield Waterproofing Systems (NON-HVHZ) Pedestrian and vehicular deck waterproofing systems for use in FBC non-HVHZ jurisdictions. | No | N/A |
Standards cited
ASTM C957 2017; ASTM G154 2016; ASTM G155 2021; FM 4474 2020; TAS 114(D) 2011
Verify FL47091 on floridabuilding.org before you rely on it for a permit. Spot an error? info@flapprovalwatch.com
Other Duro-Last (Amrize Building Envelope LLC) numbers
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