Skylights are part of the building envelope just like windows and exterior doors.
In Florida, that means a skylight can face wind pressure, wind-borne debris, intense sun, heat gain and water-management challenges at the roof.
Impact-rated skylights do exist—including products approved for HVHZ—but the exact product and installation matter.
Are impact skylights approved in Florida?
Yes.
The Florida Product Approval database includes impact-resistant skylight systems.
Current records include:
- Impact skylights approved for HVHZ
- Impact skylights approved outside HVHZ
- Large- and small-missile configurations
- Curb-mounted and self-flashing systems
One 2026 Florida approval, FL47999, includes an impact skylight listed for HVHZ use.
Other current records include impact skylights from multiple manufacturers and configurations.
What should you verify?
Check:
- Florida Product Approval or applicable Miami-Dade NOA
- Impact classification
- HVHZ eligibility
- Approved dimensions
- Design-pressure limits
- Curb-mounted vs self-flashing configuration
- Roof type
- Installation instructions
- Glass or glazing construction
- Water-management details
Do not assume a skylight is hurricane-rated because the glazing looks laminated.
Why is roof integration so important?
A skylight penetrates the roof system.
That means successful performance depends on more than the skylight frame.
The project also needs to address:
- Roof curb
- Flashing
- Underlayment
- Fasteners
- Sealants
- Drainage
- Roof covering
- Interior shaft
A strong skylight installed into a poor roof detail can still create problems.
What about heat gain?
Florida’s climate makes solar heat gain especially relevant.
The University of Florida’s My Florida Home Energy guidance notes that skylights can introduce significant solar heat and recommends careful shading and energy-performance selection.
For energy comparison, review:
- Solar Heat Gain Coefficient
- U-factor
- Visible transmittance
- Tint or Low-E coating
Our Low-E, SHGC and U-factor guide explains those metrics.
Are impact skylights required everywhere in Florida?
No universal answer applies to every property.
Requirements depend on:
- Location
- Wind-borne debris region
- HVHZ status
- Building code
- Permit scope
- Roof configuration
- Existing-building conditions
Confirm the actual project with the permitting authority.
Can an old skylight be replaced during a re-roof?
Often, yes, but the roof permit and skylight scope need to be coordinated.
Replacing the skylight at the same time can make sense when:
- Flashing is being removed
- The existing skylight is aging
- The old unit lacks current impact protection
- The curb condition needs repair
Do not assume the roofing contractor and skylight installer are handling the same scope unless the contract says so.
Frequently asked questions
Are impact skylights available for Miami-Dade and Broward?
Yes. Current Florida records include impact skylights approved for HVHZ, but verify the exact product.
Does impact glass make a skylight leak-proof?
No. Water performance also depends on the approved skylight system, flashing and roof integration.
Do skylights increase heat gain?
They can. Compare SHGC, U-factor, tint, Low-E and shading.
Is a skylight a Florida Product Approval category?
Yes. Florida Statutes specifically include skylights among product categories subject to the statewide approval process.
Authoritative sources
- Florida Product Approval FL47999 — Impact Skylight
- Florida Product Approval FL17669 — Stormmax Impact Skylight
- Florida Statutes §553.842
- University of Florida — My Florida Home Energy: Windows and Skylights
The bottom line
A Florida skylight should be selected as a complete roof-opening system—not simply as a piece of impact glass.
AA Glass & Windows can help review impact-glass options and exterior openings for your Florida property. Request a free estimate to discuss the project.
