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FL9520: Custom Window Systems Inc., Mullions
2026 code statusPending
FL9520-R10 is on file under the 2026 code with status “Pending FBC Approval”. Not approved for 2026 yet.
Last checked against floridabuilding.org: Oct 19, 2026, 11:30 AM ET. See the state record.
Filing record
- 2026 application
- FL9520-R10, Pending FBC Approval (Revision) · state record
- 2023 code approval
- FL9520-R9, Approved · state record
- Submitted
- Oct 9, 2026
- Validated
- Oct 10, 2026
- Pending FBC approval
- Oct 14, 2026
- Approved for HVHZ
- Yes
- Impact resistant
- Yes
- 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 (5)
| # | Model / description | HVHZ | Impact |
|---|---|---|---|
| 9520.1 | 3" Alum. Tube Mullion 3" Alum. Tube Mullion, Horizontal & Vertical, Fin & Flange applications. (IMPACT-HVHZ) | Yes | Yes |
| 9520.2 | 3" Alum. Tube mullion 3" Alum. Tube Mullion, Horizontal & Vertical, Fin & Flange applications. (IMPACT-WIND ZONE 3) | No | Yes |
| 9520.3 | 4" Alum. Tube Mullion 4" Alum. Tube Mullion, Horizontal & Vertical, Fin & Flange applications. (IMPACT-WIND ZONE 3) | No | Yes |
| 9520.4 | 4" Alum. Tube Mullion 4" Alum. Tube Mullion, Horizontal & Vertical, Fin & Flange applications. (IMPACT-HVHZ) | Yes | Yes |
| 9520.5 | 5 1/2" Alum. Tube Mullion 5 1/2" Alum. Tube Mullion, Horizontal & Vertical, Fin & Flange applications. (IMPACT) | Yes | Yes |
Standards cited
AAMA 450 2020; ASTM E1886 2019; ASTM E1996 2020; PA TAS 201/202/203 1994
Miami-Dade NOAs, same maker
Matched by company name. The state doesn't link NOAs to FL numbers.
| NOA | Description | Expires |
|---|---|---|
| 24-0116.11 | Series 7400 Outswing Aluminum Casement Window - L.M.I.Large and Small Missile Impact, +70/−82 psf | March 4 2029 |
| 25-0612.01 | Series "310 (Fin Frame)" Aluminum Single Hung Window - N.I.[None], +70/−100 psf | July 7 2030 |
| 25-0612.02 | Series "310 (Flange Frame)" Aluminum Single Hung Window - N.I.[None], +70/−100 psf | September 1 2030 |
| 25-0612.05 | Series "CWS-330 (Flange & Fin Frame)" Aluminum Fixed Window - N.I.[None], +100/−100 psf | May 8 2028 |
| 25-0929.03 | Series "7100 (Flange Frame)" Aluminum Single Hung Window - L.M.I.Large and Small Missile Impact, +80/−80 psf | December 27 2031 |
| 25-0929.04 | Series "7200 (Flange Frame)" Aluminum Horizontal Sliding Window - L.M.I.Large and Small Missile Impact, +80/−80 psf | April 11 2027 |
| 25-0929.05 | Series "7200 (Fin Frame)" Aluminum Horizontal Slider Window - L.M.I.Large and Small Missile Impact, +60/−60 psf | October 9 2028 |
| 25-0929.06 | Series "SH-7100 (Fin Frame)" Aluminum Single Hung Window - L.M.I.Large and Small Missile Impact, +60/−60 psf | November 6 2028 |
Verify FL9520 on floridabuilding.org before you rely on it for a permit. Spot an error? info@flapprovalwatch.com
Other Custom Window Systems Inc. numbers
- FL153 PendingHorizontal Slider
- FL161 PendingSwinging Exterior Door Assemblies
- FL163 PendingSingle Hung
- FL4091 PendingSingle Hung
- FL4092 PendingHorizontal Slider
- FL4093 PendingFixed
- FL4452 PendingCasement
- FL5777 PendingMullions
- FL5823 PendingSingle Hung
- FL6890 PendingCasement
- FL7013 PendingHorizontal Slider
- FL7060 PendingAwning
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