Do I need hurricane impact windows in Miami?
Answered by AskBaily Editorial · Updated
Short answer
Yes. Miami-Dade and Broward sit in the Florida HVHZ — every exterior opening (window, door, garage door, skylight) must carry a current Miami-Dade Notice of Acceptance demonstrating Large Missile Impact + design pressure ratings per ASTM E1886/E1996. Non-HVHZ windows cannot be permitted. Retrofitting impact glass on a 1950s single-family adds roughly $18K-$65K to a whole-home renovation.
In detail
Yes. Miami-Dade and Broward sit in the Florida HVHZ — every exterior opening (window, door, garage door, skylight) must carry a current Miami-Dade Notice of Acceptance demonstrating Large Missile Impact + design pressure ratings per ASTM E1886/E1996. Non-HVHZ windows cannot be permitted. Retrofitting impact glass on a 1950s single-family adds roughly $18K-$65K to a whole-home renovation.
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