The Code You Need To Know

A Quick Look at Energy Updates in the Florida Building Code, 5th Edition (2014)

The Florida Building Code Fifth Edition (2014) goes into effect at midnight on June 30th, 2015. Homes in the wind-borne debris region depicted on the map will still require approved hurricane shutters or impact-resistant windows and doors. PGT®WinGuard® and PremierVue™ products are designed to meet or exceed the requirements of the wind-borne debris region.

What's changed? The relevant sections.
R101.4.7 Building systems and components. Thermal efficiency standards are set for the following building systems and components where new products are installed or replaced in existing buildings, and for which a permit must be obtained. New products shall meet the minimum efficiencies allowed by this code for the following systems and components:
  Heating, ventilating or air conditioning systems
  Service water or pool heating systems
  Lighting systems
  Replacement Fenestration

402.3.6 Replacement fenestration. Where some or all of an existing fenestration unit is replaced with a new fenestration product, including sash and glazing, the replacement fenestration unit shall meet the applicable requirements for U-factor and SHGC in Table 402.1.1

This Energy Code is Now Enforceable (residentially)!
30% rule no longer applies to window replacements
Replacement products will be required to meet the energy code
New construction will have the choice to follow the performance or prescriptive path.

Performance Path for Compliance
Designers need to use an energy compliance software tool approved by the Florida Building Commission. The analysis only includes heating, cooling and service water heating.

Using this software allows architects or mechanical engineers to perform a trade-off between U-values and SHGC ratings. When using trade-offs from Section 405, the area weighted avg. max SHGC allowed is 0.50.

The Florida Building Code Fifth Edition (2014) will require replacement fenestration to meet the U-factor and SHGC depicted on the map below. Note that Florida will be divided into two distinct climate zones, each having different requirements. Within each zone, there are also differing requirements for Non Impact and Impact resistant windows and doors.
Because code standards and requirements may vary from state-to-state and among local jurisdictions, please check with your local building authority for the most recent code requirements.

Florida Energy Codes for Replacement windows and doors are changing.

New requirements are being enforced in some municipalities.