Quick answer: Impact glass is permanent, always-active hurricane protection built into the window or storefront itself — no deployment required. Hurricane shutters are bolt-on accordion, roll-down, panel, or Bahama-style protections that deploy before a storm. Impact glass costs more upfront but adds value, qualifies for insurance discounts, and doesn't require pre-storm action. Shutters cost less but require deployment and detract from the building appearance.
Impact-rated glass is a laminated assembly: two layers of glass bonded to a tough interlayer (PVB or SGP). When a flying object hits the glass, the outer layer may crack, but the interlayer holds the assembly together and prevents the opening from being breached. The pressurization of the building is maintained — which is what actually causes roof failures during hurricanes.
Shutters block the opening physically — accordion shutters fold across the opening from the side, roll-down shutters drop from the top, panel shutters bolt over the opening, Bahama shutters are hinged at the top. All of them are tested to the same TAS 201, 202, 203 standards as impact glass — they just have to be deployed.
Impact glass on a Florida commercial project adds roughly 18-30% to the storefront or window line item — typically $15-$45 per square foot above non-impact equivalent. Accordion and roll-down shutters cost $25-$45 per square foot installed. So shutters can be cheaper than impact glass on the line item alone, but you still need a code-rated window underneath them, and you lose the always-on protection.
Most Florida insurers offer wind mitigation discounts for impact-rated openings — typically 30-45% off the wind portion of the premium. Shutters qualify for the same discount IF they are deployed and certified. Impact glass typically delivers a measurable resale-value premium on commercial property; shutters do not.
Impact glass is invisible — the building looks like any other glass building. Shutters change the appearance: accordion tracks are visible at the sides of openings, roll-down housings sit above openings, panels require permanent storage and pre-storm deployment crews. For restaurants and retail, the appearance trade-off is decisive — most upscale operators choose impact glass.
For most commercial buildings in Florida, impact glass is the better choice because it requires no deployment, doesn't affect building appearance, and delivers measurable resale value. Shutters are cheaper upfront but require pre-storm action and can detract from building aesthetics.
Impact glass adds $15-$45 per square foot to a Florida storefront or window line item. Accordion and roll-down shutters typically cost $25-$45 per square foot installed. Shutters are usually cheaper on the line item, but you still need a code-rated window underneath them.
Yes, IF they are properly certified and deployed before a storm. Most Florida insurers offer the same wind mitigation discount for impact glass and rated shutters. Verify with your specific insurer before assuming the discount.
Yes, and some commercial owners do — impact glass for everyday protection plus shutters for the highest-exposure openings during major storms. The combination delivers redundant protection but doubles the cost.
No — the Florida Building Code requires either impact-rated openings OR rated shutters in HVHZ counties and coastal jurisdictions. You can choose either approach, but you must have one of them on all openings exposed to the design wind load.
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