Impact Glass 101: What Every Miami Homeowner Must Know
Impact Glass · 6 min read

Impact Glass 101: What Every Miami Homeowner Must Know

Miami-Dade County sits in what building codes call a High Velocity Hurricane Zone (HVHZ) — the strictest designation in the United States. Every exterior window and door must meet specific impact-resistance standards certified by the county's Notice of Acceptance (NOA) program.

What Is NOA?

A Notice of Acceptance (NOA) is a Miami-Dade County certification that a product has been tested and approved for use in HVHZ conditions. Every impact window and door system installed in Miami-Dade must carry a valid NOA number. Installing non-certified products is a building code violation.

The Cracked Glass Problem

Here is what most homeowners do not realize: a single crack in your impact glass — no matter how small — immediately voids the panel's hurricane certification. The laminated interlayer (PVB) that holds shattered glass in place is compromised by any penetrating crack.

From an insurance standpoint, a cracked impact pane means that opening is no longer considered "protected" during a storm. This can affect your hurricane coverage claims.

What CoastSlide Does

We carry NOA-certified laminated glass matched to your specific door or window system on every truck. Repairs include glass unit, frame gasket, glazing bead, and post-install inspection. All work is HVHZ compliant.

Need a repair? CoastSlide serves Miami-Dade, Broward and Palm Beach. Get a free estimate →
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