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FL47523: National Nail Corp, Underlayments
2026 code statusNot yet
Approved under the 2023 code (FL47523). No 2026 filing found under this number.
Last checked against floridabuilding.org: Oct 19, 2026, 10:28 AM ET. See the state record.
Filing record
- 2026 application
- None found
- 2023 code approval
- FL47523, Approved · state record
- Approved for HVHZ
- n/a
- Impact resistant
- n/a
- Validated by
- NEMO CERT, LLC (Validation)
Miami-Dade NOAs, same maker
Matched by company name. The state doesn't link NOAs to FL numbers.
| NOA | Description | Expires |
|---|---|---|
| 25-0829.02 | National Nail Synthetic UnderlaymentsUnselected / Unknown, +0/−0 psf | October 9 2030 |
| 25-1208.07 | National Nail Synthetic Self Adhered UnderlaymentsUnselected / Unknown, +0/−0 psf | January 22 2031 |
| 26-0721.02 | EXOSTKNW 40 mil Roofing UnderlaymentUnselected / Unknown, +0/−0 psf | January 23 2030 |
| 23-0912.11 | National Nail Synthetic Underlayments.Unselected / Unknown, +0/−0 psf | December 14 2027 |
Verify FL47523 on floridabuilding.org before you rely on it for a permit. Spot an error? info@flapprovalwatch.com
Other National Nail Corp numbers
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