Broward specifics · Design Pressure
The Number That Should Be on Every Line of Your Quote
Design pressure is calculated per opening from the building, the site and the unit. It is the number that decides what may legally go in the hole, and most homeowners are never shown it.
Give us the address and a rough count of openings. We will tell you what the design pressures are before anyone quotes you a price.
HVHZ
Broward is inside the High Velocity Hurricane Zone
NOA
Miami-Dade Notice of Acceptance is the approval that governs here
Our crews
We measure, we schedule, and our own people install
Licensed
A licensed Florida general contractor
A single figure for the whole building
Pressure is not a property of the house. It is a property of each opening — its height above grade, its position relative to corners and edges, the exposure of the site, and the size of the unit itself. Corner and upper openings carry markedly higher numbers than centre-of-wall openings at ground level. A quote listing one design pressure for every window has averaged something that cannot be averaged.
What goes into the calculation
- Ultimate design wind speed for the address.
- Exposure category — waterfront and open ground raise it.
- Height above grade of the specific opening.
- Proximity to building corners and roof edges, where pressures peak.
- The size of the unit, since approved pressure falls as area rises.
Why waterfront Broward is a different number
Exposure category is the part homeowners are least aware of. A house on open water or a wide waterway sits in a higher exposure category than an identical house four streets inland surrounded by mature trees and other buildings — and the resulting design pressures can differ substantially for the same architecture.
That is why an inland quote does not transfer to a waterfront property, and why the intracoastal and ocean-facing homes in Broward routinely need a heavier specification than their owners expect from asking neighbours what they paid.
How we handle it
- 01Calculate positive and negative pressure for every opening.
- 02Give you the schedule in writing before pricing.
- 03Specify units approved at or above the calculated number at that size.
- 04Flag openings where the wanted configuration will not hold the number.
We produce the schedule first and share it. It is a dull document — opening by opening, dimensions, height, exposure, required pressure — and it is the thing that lets you compare two quotes honestly. Once it exists, product selection becomes a matter of matching approvals to numbers rather than trusting a brand.
Said plainly
Where we stop
We are not structural engineers and do not issue engineering certification. Where a job needs sealed calculations, that is an engineer's scope and we will bring one in rather than improvise.
FAQ
Common questions
- Why does my neighbour's quote differ from mine?
- Exposure, height and opening layout. Two houses on the same street can carry different numbers if one is on the water and one is not, or if one has large corner openings and the other does not.
- Can I just ask for the highest rating available?
- You can, and it usually wastes money. The correct approach is each opening approved for its own requirement. Over-specifying the small sheltered windows buys nothing.
- Should the pressures be on the permit?
- The approvals and the schedule form part of the permit package. If a contractor cannot produce them, that is the question to press before signing anything.
What we install
Impact Windows
The core product, and the one most often quoted wrong. What matters is not the brand on the sticker but whether that exact unit holds an NOA for the pressure your specific opening has to resist.
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Sliding Glass Doors
The widest opening in the house, usually facing the water, usually carrying the highest design pressure on the elevation. It is also the one most likely to have been under-specified.
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Entry Doors
An entry door is a small opening carrying a large expectation. On a luxury elevation it is also the piece everyone looks at, which makes the trade-off between approval and appearance sharper here than anywhere else on the house.
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Garage Doors
On most houses the garage door is the single largest opening in the envelope, and the one whose failure does the most damage. It is also the one most often left out of an impact upgrade.
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French & Specialty Openings
Arched heads, French pairs, fixed picture units, corner glazing. These are the openings that give a house its character, and the ones where approval and appearance argue with each other most.
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Impact Glass Retrofit
Replacing the glazing while keeping the existing frames. On the right building it saves real money and real disruption. On the wrong one it produces something that is not approved and cannot be made so.
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More broward specifics
Broward Is HVHZ
Miami-Dade and Broward are the only counties inside the High Velocity Hurricane Zone. It is a genuinely different approval regime, and it is the single fact that should shape a Broward quote.
Read more →
Waterfront & Exposure
Broward is cut through with waterway. A house on the Intracoastal, a finger canal or the ocean carries higher design pressures and a corrosion problem the inland houses do not have.
Read more →
Older Housing Stock
A great deal of Broward housing predates the code changes that followed 1992. On those buildings the window is the easy part; what the window is fixed into decides the job.
Read more →
Next step
Find out what is actually wrong with it.
An inspection, photographs of what we found, and a written scope. If the honest answer is that it can wait another season, that is the answer you will get.