Florida's hurricane testing standards are the strictest in the country — and the reason Florida-rated impact windows and shutters survive storms that destroy lesser products in other states. Here's what TAS 201/202/203 testing actually involves, what design pressure means, and what the High Velocity Hurricane Zone (HVHZ) standards add on top.
The Three Florida Tests
Florida Building Code requires impact-rated products to pass three tests, collectively known as TAS 201, TAS 202, and TAS 203. Together they verify a window or shutter survives wind-borne debris, sustained wind pressure, and pressure cycling.
- TAS 201 — Large Missile Impact Test: a 9-pound 2x4 fired at 50 fps (34 mph) directly at the glass.
- TAS 202 — Uniform Static Air Pressure Test: sustained wind pressure applied to verify the glass and frame don't deflect or fail.
- TAS 203 — Cyclic Wind Pressure Loading Test: 9,000 cycles of fluctuating positive and negative pressure simulating sustained hurricane winds.
TAS 201 — The Large Missile Test
The Large Missile Test is the most famous Florida hurricane test. A pneumatic cannon fires a 9-pound piece of dimensional lumber (2x4) at 34 mph straight at the center of the glass. The product fails if the missile penetrates the laminated interlayer and enters the test chamber.
The 9-pound 2x4 at 34 mph represents wind-borne construction debris carried by 110+ mph hurricane winds. Real-world hurricane debris is rarely larger or faster than this test — a window that passes TAS 201 is genuinely capable of stopping hurricane debris.
TAS 202 — Static Pressure Test
After surviving the missile impact, the same product must withstand sustained wind pressure equivalent to its rated design pressure. Pressure is applied uniformly to one face for several minutes; the glass cannot crack further, the frame cannot deflect beyond specification, and the seal cannot fail.
Design pressures in Florida range from about +30/-35 PSF for inland homes to +60/-75 PSF for barrier-island beachfront. Higher design pressure = stronger frame, thicker glass, more robust attachment hardware.
TAS 203 — Cyclic Pressure Test
The toughest of the three tests. The product is subjected to 9,000 cycles of pressure variation — alternating positive and negative pressure as if exterior wind is sucking and pushing on the glass for hours of sustained hurricane.
Many products that pass TAS 201 and 202 fail TAS 203. The cyclic test is what separates true hurricane-rated products from "impact resistant" products that may survive a single missile but can't handle hours of fluctuating wind.
A product that passes all three tests earns a Notice of Acceptance (NOA) — the Florida Product Approval that proves the product meets Florida hurricane standards.
High Velocity Hurricane Zone (HVHZ)
The High Velocity Hurricane Zone covers Miami-Dade and Broward Counties — the two Florida counties with the strictest building code in the country. HVHZ products go through the same TAS 201/202/203 tests, but with elevated design pressures and additional fastening requirements.
HVHZ-rated products work everywhere in Florida (the spec is more demanding than non-HVHZ Florida code), but most non-Miami-Dade homes don't need HVHZ-spec products. We typically install HVHZ-spec on barrier islands, beachfront elevations, and homes within 1,500 feet of the Atlantic shoreline.
Florida Product Approval (NOA)
Every impact window, shutter, and door installed in Florida must carry a current Florida Product Approval — also called Notice of Acceptance (NOA) or Florida Product Approval Number. This documentation proves the product passed the required Florida testing and is approved for installation.
When you receive a quote for impact windows or shutters in Florida, the contractor should be able to provide the Florida Product Approval Number for every product they're installing. If they can't, do not buy from them — the products may not actually pass current Florida code.
How This Affects Your Home
For Florida homeowners, the practical takeaway is: every impact-rated window, shutter, or door in your home should carry a current Florida Product Approval Number. We provide all NOAs and Florida Product Approval documentation at every install — your county inspector and your insurance carrier both need this paperwork.
When in doubt about whether an existing product is actually code-compliant, look for the NOA sticker (typically inside the frame or on the back of a shutter). If the product is older than 2002, it likely no longer meets current Florida code — even if it was code-compliant when installed.
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