Florida Window Installation — Impact Glazing Permit Closeout Case Study

A Tampa Bay homeowner replaced 14 windows and 2 sliding glass doors during a 2022 remodel. The contractor pulled the permit, installed the units, and moved on without booking the final inspection. The permit sat open for 18 months. When the owner went to refinance, the lender’s appraiser flagged the open permit, and the refi stalled.

What we found on site

The installation was high quality. The problem was administrative. Our site visit and documentation review showed:

• All 16 openings used Miami-Dade NOA-approved impact-rated units, matching the products listed on the permit application.
• Opening preparation, flashing, and fastening followed the manufacturer’s installation instructions — specifically the fastener type, spacing, and substrate engagement required under the NOA.
• The anchors were pressure-rated for the site’s design wind pressure calculated per ASCE 7-16 (the edition in effect at permit issuance), with a comfortable margin at every opening.
• Sealant and perimeter detailing met the manufacturer’s wet-glazing requirements.

The documentation package

We issued an engineer letter stating, under PE seal, that the 16 openings were installed in conformance with the Florida Building Code — Building, the applicable wind-borne debris provisions, and the manufacturer’s NOA-listed installation instructions. The letter referenced the permit number, the FBC edition, the NOA numbers for each product, and the calculated design wind pressures.

The jurisdiction closed the permit five business days after receipt. The refinance closed the following week.

Why this closes the permit

Window installations in the wind-borne debris region (which covers most of Florida) are a high-stakes inspection category. The inspector’s concern is that glazing, anchors, and opening protection provide the documented wind resistance the code requires. When a PE inspects the installation, verifies the NOA match, confirms the fastening meets the design pressure, and seals the finding — that carries the same regulatory weight as an approved inspection would.

If you have an open window permit in Florida, the path to closure is almost always an engineer letter. Our permit affidavit service handles these weekly.