Florida's 2026 building code and home solar

The 9th Edition (2026) Florida Building Code takes effect December 31, 2026. It's based on the 2024 International Codes and adopts the 2023 National Electrical Code; the current 8th Edition uses the 2020 electrical code.

Which edition applies generally depends on when the permit application is submitted. Miami-Dade County, for example, says online applications submitted after 4 p.m. on December 30, 2026, must follow the new edition. Ask your building department for its cutoff. See how long solar installation takes in Florida.

The residential code's battery section (R328) is retitled "Stationary Storage Battery Systems" and adds detail on where batteries can go. It now defines the garage locations where a battery could be hit by a vehicle, which need protection such as bollards or wheel barriers; the prior edition only called for "approved barriers." Ask your installer where a battery will be mounted and what protection it needs. See adding a battery to existing solar.

A new section on corrosion requires fasteners and connectors within 3,000 feet of a saltwater coastline to meet stainless steel standards (grades 304, 305 or 316), with an exception for fasteners fully embedded in concrete or mortar. Whether it covers solar racking hardware specifically isn't spelled out in the summaries we found, so ask your installer what hardware they use. See how long solar panels last in Florida.

Solar shingles and other building-integrated solar roofing must be listed to the UL 7103 standard, and there are new provisions for panels mounted on raised frames over a roof.

• Wind loads. Florida already adopted the ASCE 7-22 wind standard with the 2023 code, and peninsula wind speeds were largely unchanged then.
• Outdoor emergency disconnect and whole-home surge protection. Both were already required under the 2020 electrical code; the 2023 edition refines them.
• Roof fire pathways. We found no change to the residential pathway and ridge setback rules for solar arrays.

The 2023 electrical code also exempts carports, trellises and shade structures from rapid shutdown rules. See solar carports and pergolas.

Florida's residential code battery section (R328) follows the national fire code for home batteries: each battery unit is limited to 20 kWh, and the total in one place is capped at 40 kWh in a utility closet or storage space and 80 kWh in a garage, on an exterior wall or outdoors. Batteries must be listed to the UL 9540 standard, as Florida building departments such as Davie note on their permit sheets.

Most homes with one to three batteries stay well under those caps; larger setups should be checked with the building department early. See whole-home battery backup.

Mostly not for the peninsula. Florida law firm Jimerson Birr reported in June 2026 that the 9th edition raises design wind speeds in the western Panhandle for most building categories, which can mean stronger racking and more attachments for new solar in that area. Elsewhere, ask your installer which wind speed and exposure category the plans use. See can solar panels survive a hurricane.

Possibly, though that's state law, not the code edition. A 2025 law (HB 683) added solar to fast-track single-trade permit reviews and lets private providers handle plan review and inspections, and HB 803 in 2026 shortened private-provider review windows, to 5 business days for single-trade work on one- and two-family homes, according to Becker. Ask your installer whether they use a private provider. See how long solar installation takes.

If you're already planning a system, there's no reason to wait, and a permit applied for before your local cutoff generally stays under the current code. But the new rules aren't a big cost driver for most rooftop systems, so don't rush a decision just to beat the date. Ask installers which code edition your permit will fall under, how a battery would be protected in a garage, and what fasteners they use if you're near the coast. See how to choose a solar company in Florida.