Florida energy calc
guides.
Plain-language guides to the parts of Florida's energy and mechanical codes that decide whether a residential permit moves: which compliance path to use, how Manual J, S and D fit together, why calcs get rejected, and when a seal matters. Every rule is linked to the code section or county checklist it comes from.
2026 codeThe 2026 Florida energy code, for residential permitsThe 9th Edition is scheduled for Dec 31, 2026; what changes for R405 and glazing.Energy compliance pathsForm R405 vs R402: which Florida energy path fits the houseForm R402 is Florida's prescriptive path: every envelope component meets a table value.Load calculationsManual J, S and D, explained for Florida permitsFlorida's energy code requires heating and cooling equipment to be sized with ACCA Manual S, based on loads from ACCA Manual J or another approved method, for the building's actual orientation.Plan reviewWhat Florida permit offices reject in energy calcs and Manual JMost energy-calc rejections in Florida are paperwork, not physics: a missing signature on the front or display page, a calc merged into the plan set, a file name the portal refuses, a missing legal description, or outdated forms.Signing and sealingSealed or unsealed: when a Florida energy calc needs a PEFor single-family homes, duplexes and townhouses, Florida's energy code says no license or registration is required to prepare the compliance form.