Window & door engineering
Replacing windows or doors in South Florida means proving each opening resists the wind pressure at your specific address, and in the High-Velocity Hurricane Zone, that the product is impact-rated. Airavata prepares the signed and sealed engineering that permit reviewers require.
We compute design pressures per ASCE 7-22 for each opening and check them against the product's verified approval, so the schedule you submit matches what the building department is looking for.
Start a projectImpact windows & doors
When the water rises.
In a South Florida surge, the flood presses on your windows and doors long before the wind lets up.
What’s involved
What the code requires.
- Velocity pressure and component-and-cladding design pressures per ASCE 7-22, by opening and wind zone (positive and negative).
- Each product checked against its verified Miami-Dade NOA or Florida Product Approval at the required size.
- In Miami-Dade and Broward (HVHZ), impact protection is required and noted to the applicable TAS standards.
- A per-opening schedule: location, size, zone, required pressures, selected product, rating, and pass/fail.
How it works
From field to seal.
Openings
We work from measured rough-opening sizes and locations, measured, not assumed.
Design basis
Wind speed and exposure are confirmed for your jurisdiction and mean roof height.
Product check
Candidate products are verified against a live NOA or FL# for the required pressures.
Sealed schedule
The reviewed schedule is signed by the Engineer of Record for permit submission.
Common questions
Window & door engineering, FAQ
Do I need an engineer to replace windows in Miami-Dade?
Permit reviewers generally require signed and sealed engineering showing each opening meets the design wind pressures for your address, with impact-rated products in the HVHZ. The exact requirement depends on the jurisdiction and scope; we confirm it for your project before starting.
What is an NOA and why does it matter?
A Notice of Acceptance is Miami-Dade's product approval. Windows and doors must carry a valid NOA (or a Florida Product Approval with HVHZ acceptance) rated for the pressures at your opening. We verify approvals against the current source, not cached listings.
Are impact windows always required?
In the High-Velocity Hurricane Zone (Miami-Dade and Broward), opening protection is required. Requirements differ elsewhere and by wind zone. We confirm what applies to your address rather than assume.
Do impact windows and doors help with flooding when shutters can't?
They address a threat shutters do not. Storm shutters mount over an opening to stop wind-borne debris; they are not a sealed barrier, so standing water and storm surge pass right by them. A fixed, impact-rated window or door is a sealed, engineered opening, so where it is designed and installed for those conditions it can hold back water that a shutter never would. How much flood resistance you actually get depends on the specific product and installation, which is exactly what the sealed engineering has to account for.
Have a project like this?
Send the address and scope. We'll confirm what the code requires and what a sealed package looks like.
Prefer to talk? Call 305-393-0690