Skylight installation in Palm Beach County covers new skylight installation on residential and commercial roofs, skylight replacement on existing curb and deck-mounted units, solar tube and tubular daylighting device (TDD) installation as lower-profile alternatives to traditional skylights, skylight flashing repair and replacement, and curb repair on existing installations.
Florida Building Code Chapter 24 governs skylight installation in Palm Beach County, specifying glazing requirements, wind load ratings, flashing standards, and the impact resistance requirements that apply to all new skylight installations in PBC's designated High Velocity Hurricane Zone.
Every skylight installed in Palm Beach County must carry a current Florida Product Approval number demonstrating it meets FBC's wind and impact requirements for the county's design wind speed zone — a standard that eliminates most big-box retail skylight products, which are tested to lower wind resistance standards used in non-hurricane states.
All skylight installation in Palm Beach County, which involves penetrating and modifying the roof system, requires a licensed Florida CCC contractor and a building permit.
A skylight installed without a permit is non-compliant under FBC, will not qualify for any applicable energy credits, and creates a disclosed defect on the property record that complicates future transactions in Palm Beach County's active real estate market.
The ventilation argument for skylights in Palm Beach County is more nuanced than national marketing suggests. Venting skylights — units that open to allow hot air to escape through the roof — are effective in climates where passive ventilation meaningfully reduces cooling loads.
In South Florida, where homes and commercial buildings run air conditioning continuously and the outdoor air temperature regularly exceeds indoor set points from April through November, opening a venting skylight during the day introduces heat and humidity rather than relieving it.
Venting skylights in PBC are most useful for early morning and late evening ventilation during the brief shoulder seasons — October and November, March and April — when outdoor temperatures drop below the indoor cooling setpoint.
Fixed skylights with high-performance low-e glazing deliver the daylighting benefit year-round without the ventilation tradeoff, and are the more appropriate specification for most Palm Beach County residential applications where the primary goal is natural light rather than passive cooling.
Skylight Installation Checklist - Palm Beach County
- Verify the proposed skylight product carries a current Florida Product Approval number for PBC's High Velocity Hurricane Zone before ordering — confirm with the contractor in writing
- Confirm your contractor holds a current Florida CCC license at floridacontractorcheck.com — skylight installation modifies the roof system and requires a licensed roofer
- Verify a building permit will be pulled before work begins — unpermitted skylight installation is a disclosed defect in PBC property transactions
- Specify impact-resistant laminated or tempered glazing — FBC requires impact-resistant glazing for skylights in Palm Beach County's wind zone
- Confirm the flashing system — curb-mounted skylights require a raised curb minimum 4 inches above the roof surface per FBC
- Request the energy performance data for the proposed glazing — Solar Heat Gain Coefficient (SHGC) of 0.25 or lower is appropriate for PBC's cooling-dominated climate
- For solar tubes, confirm the dome is impact-rated and the flashing is compatible with your specific roof system — tile, shingle, or flat membrane each require different flashing configurations
Skylights in Palm Beach County: glazing, flashing, wind compliance, and the South Florida daylighting case
The South Florida argument for skylights begins with a specific condition of the regional built environment that is easy to overlook from outside the market: Palm Beach County's residential architecture prioritizes thermal performance over daylighting in a way that northern and mid-Atlantic markets do not.
Homes designed for South Florida's climate feature deep overhangs that shade windows, small window-to-wall ratios that minimize solar heat gain, and orientation strategies that limit east and west glazing to reduce afternoon sun penetration.
The result is interiors with controlled temperatures but limited natural light — a condition that skylights address more effectively than additional windows because top-lighting delivers two to three times more light per unit of glazing area than vertical windows at the same solar heat gain coefficient.
Florida Building Code Chapter 24 establishes the compliance framework for skylight installation in Palm Beach County and is materially more demanding than the codes applicable in most other states. The two provisions that most directly affect product selection are the impact resistance requirement and the wind load rating.
Palm Beach County is designated as a High Velocity Hurricane Zone under FBC, and all skylights installed in PBC must demonstrate impact resistance equivalent to large missile impact test protocol — the same standard applied to windows and doors in the county's wind zone. This requirement eliminates most standard residential skylight products, which are tested to lower wind resistance standards.
The Florida Product Approval database at floridabuilding.org is the authoritative source for products that have been tested and approved for PBC's design parameters — any skylight specified for a Palm Beach County installation should be verified in this database before ordering.
Flashing is the technical variable that most determines skylight performance in South Florida's rainfall environment. A skylight flashing system must manage two water loads simultaneously: the direct rainfall that strikes the skylight frame and curb, and the water that runs off the roof surface toward the skylight from above.
In PBC's rainfall environment — 62 inches annually with peak storm events delivering 2–4 inches per hour — a flashing system that performs adequately in moderate rainfall is frequently overwhelmed by peak load conditions.
Curb-mounted skylights — the standard installation type on sloped roofs — require a raised curb minimum 4 inches above the finished roof surface per FBC, with step flashing at the sides and saddle flashing at the upslope edge that directs runoff around the skylight rather than into it. The most common skylight leak in Palm Beach County is not failed glazing seal — it is failed step flashing at the upslope corners where the curb meets the roof surface, typically resulting from inadequate flashing length, incorrect overlap with the adjacent roofing material, or sealant that has degraded under South Florida's UV exposure.
Solar tubes — tubular daylighting devices that use a small roof-mounted dome to capture and reflect daylight through a highly reflective tube to a ceiling diffuser — represent a lower-profile and lower-risk alternative to traditional skylights for Palm Beach County homeowners who want natural light without the flashing complexity of a full skylight installation. The roof penetration for a solar tube is significantly smaller than a traditional skylight — 10 or 14 inches in diameter versus 24 by 48 inches or larger for a traditional unit — and the dome profile sits lower on the roof surface, reducing wind load exposure. Solar tubes do not provide the view or the sense of openness that traditional skylights deliver, but they introduce useful daylight levels into interior spaces — hallways, bathrooms, closets, and windowless rooms — where a full skylight would require significant structural modification. In Palm Beach County's tile roof market, solar tube installation on an existing tile roof is substantially less invasive than traditional skylight installation because the smaller penetration can be managed within the existing tile layout without the large-scale tile removal a full skylight curb requires.
Energy performance is a legitimate consideration in skylight specification for Palm Beach County, though the relevant metrics differ from those marketed in heating-dominated climates.
In PBC's cooling-dominated climate, the Solar Heat Gain Coefficient (SHGC) — the fraction of solar radiation that passes through the glazing as heat — is the critical energy performance metric, not the U-factor that governs performance in cold climates.
A skylight with an SHGC of 0.25 or lower admits 75% less solar heat than a standard clear glass unit while maintaining similar visible light transmittance. Low-e coated laminated glazing in current high-performance skylights achieves SHGC values of 0.20–0.30 while meeting FBC's impact resistance requirements — the two performance standards are not in conflict in current product generations.
Florida Building Code's energy provisions under FBC Chapter 13 specify maximum SHGC values for skylights in PBC's climate zone, and compliance with these provisions is verified at permit inspection — a skylight installed with non-compliant glazing will fail the energy inspection regardless of whether the structural installation is correct.
