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FL41919: MFM Building Products Corp., Underlayments
2026 code statusReady
FL41919-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
- FL41919-R2, Approved (Revision) · state record
- 2023 code approval
- FL41919-R1, Approved · state record
- Submitted
- Aug 20, 2026
- Validated
- Aug 20, 2026
- Pending FBC approval
- Oct 13, 2026
- Approved
- Oct 13, 2026
- Approved for HVHZ
- No
- Impact resistant
- No
- Compliance method
- Evaluation Report from a Florida Registered Architect or a Licensed Florida Professional Engineer
- Quality assurance
- Keystone Certifications, Inc.
- Validated by
- Steven M. Urich, PE
Products under this number (1)
| # | Model / description | HVHZ | Impact |
|---|---|---|---|
| 41919.1 | “IB-3™ StormStopper Plus” Self-Adhered roofing underlayment comprised of a mineral surface with a rubberized asphalt adhesive and backed with a removable release liner and a selvedge edge. | No | No |
Standards cited
ASTM D1970 2021
Miami-Dade NOAs, same maker
Matched by company name. The state doesn't link NOAs to FL numbers.
| NOA | Description | Expires |
|---|---|---|
| 25-0804.02 | Peel & Seal and IB UnderlaymentsUnselected / Unknown, +0/−0 psf | August 31 2030 |
| 24-0422.07 | MFM Premium HT Tile and Metal UnderlaymentUnselected / Unknown, +0/−0 psf | June 27 2029 |
| 25-0204.05 | Ultra HT Wind and Water Seal High TemperatureUnselected / Unknown, +0/−0 psf | March 27 2030 |
Verify FL41919 on floridabuilding.org before you rely on it for a permit. Spot an error? info@flapprovalwatch.com
Other MFM Building Products Corp. numbers
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