R405 form 2025

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The document is the FORM R405-2017, a Residential Energy Conservation Code Documentation Checklist from the Florida Department of Business and Professional Regulation. It outlines the requirements for compliance with the 2017 Florida Building Code regarding energy conservation in residential buildings. Key components include documentation of energy performance through a Form 405 report, HVAC system sizing, mandatory inspections, and testing for air barrier and insulation effectiveness. The document emphasizes the importance of energy efficiency measures in new construction and provides guidelines for verifying compliance.

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What is building code R403 3.6 in Florida?

R403. 3.6 Air-handling units. Air handling units shall not be installed in the attic when a home is brought into code compliance by Section R402. There are a number of new homes, particularly in South Florida, where installing air handlers in the attic is common.

What energy code does Florida use?

The Florida Building Code (FBC) - Energy Conservation, 8th Edition sets standards for energy efficiency in building design and construction across Florida.

What are the building code requirements for insulation in Florida?

Climate Zone 1 consists of the following south Florida counties: Broward, Collier, Hendry, Lee, Miami-Dade, Monroe, and Palm Beach, and require a minimum R-30 attic insulation. All other Florida counties are considered to be in Climate Zone 2 and require a minimum R-38.

What is the minimum R-value for insulation?

Depending on where you live and the part of your home youre insulating (walls, crawlspace, attic, etc.), youll need a different R-Value. Typical recommendations for exterior walls are R-13 to R-23, while R-30, R-38 and R-49 are common for ceilings and attic spaces.

How thick should insulation be in Florida?

ENERGYSTAR, recommends an R-value of R-38 for most homes. That translates to about 12 inches of insulation.

What are the requirements for exterior wall insulation in Florida?

Other insulation requirements in Florida include the following: Framed wall insulation at least R13. Interior insulation in block walls at least R7. Exterior insulation in block walls R6. Ceiling insulation higher than R30. Raised floor at least R13.

Does Florida Building Code require a vapor barrier?

A vapor er shall be provided on the interior side of frame walls in ance with Tables 1405.3(2) and 1405.3(3), or an approved design using accepted engineering practice for hygrothermal analysis.

R405 form 2025

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