Impact Glass Requirements in Florida: What Property Owners Need to Know

Understanding Florida's Impact Glass Requirements

Florida's building code is among the strictest in the nation when it comes to glazing requirements — and for good reason. With hurricane season running from June through November, protecting buildings and their occupants from wind-borne debris is not optional. It's the law.

Whether you're a property owner, general contractor, or architect, understanding when and where impact-rated glass is required can save you time, money, and potential code violations.

What Is Impact-Rated Glass?

Impact-rated glass (also called hurricane glass or laminated safety glass) consists of two or more layers of glass bonded together with a polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA) interlayer. When struck by debris, the glass may crack but the interlayer holds the pieces together, maintaining the building envelope.

Common impact glass configurations include:

• •1-5/16" laminated glass — standard for commercial storefront applications
• •Laminated insulated glass units (IGUs) — combining impact protection with thermal performance
• •Impact-rated storefront frames — approved tested systems from the manufacturer and series required by the project documents

When Is Impact Glass Required?

Under the Florida Building Code, impact-rated glazing (or approved protective systems) is required in:

• •Wind-Borne Debris Regions (WBDR) — Generally within 1 mile of the coast in areas where the basic wind speed is 130 mph or greater, and anywhere where the basic wind speed is 140 mph or greater
• •High-Velocity Hurricane Zones (HVHZ) — Miami-Dade and Broward counties have the most stringent requirements

Even outside these zones, many Central Florida projects specify impact glazing for:

• •Insurance premium reductions (often 15-45% savings)
• •Enhanced security against break-ins
• •Noise reduction
• •UV protection

Impact Options for Commercial Buildings

For commercial storefront applications, impact-rated systems include:

• •Impact Storefront — tested impact series from Aldora, Coral, C.R. Laurence, ES Windows, FHC, Kawneer, Oldcastle, Trulite, U.S. Aluminum, YKK AP, and other approved manufacturers
• •Impact Curtain Wall — for mid-rise applications
• •Impact Entrances — commercial door systems rated for large and small missile impact

Impact Options for Residential Properties

Homeowners have several impact-rated options:

• •Impact Windows — single hung, horizontal roller, casement, and fixed configurations
• •Impact Sliding Glass Doors — replacement and new construction
• •Impact Entry Doors — front doors and French doors with impact ratings

What About Shutters vs. Impact Glass?

Shutters are still an approved alternative to impact glass in many areas. However, impact glass offers significant advantages:

• •24/7 protection — no need to install shutters before a storm
• •Insurance benefits — permanent protection often qualifies for better rates
• •Aesthetic appeal — no visible shutters on the building
• •Noise and UV reduction year-round

How Vision Glass Can Help

At Vision Glass Company, impact glazing is one of our core specialties. We install impact storefront systems, impact windows and doors, and impact curtain wall for projects across Central Florida. Our team handles everything from product selection and code compliance to fabrication coordination and professional installation.

Need impact glass for your project? Contact us for a free quote or call us at (863) 913-6246.