Florida Energy Code Guide for Residential & Commercial Projects

The Florida Energy Code sets the minimum efficiency standards for new construction, additions, and renovations across the state. This guide explains how the code works, what documentation is required, and how it affects HVAC design, energy calculations, and permitting for both residential and commercial projects.

  • The Florida Building Energy Code establishes statewide requirements for:

    • HVAC system efficiency

    • Building envelope performance

    • Ventilation and infiltration

    • Mechanical system controls

    • Lighting (commercial)

    • Energy usage and compliance pathways

    Every new home, addition, and commercial project must meet these requirements to receive a building permit.

  • The energy code directly influences HVAC design by requiring:

    • Proper system sizing

    • High‑efficiency equipment

    • Balanced airflow

    • Adequate ventilation

    • Duct leakage control

    • Correct insulation and envelope assumptions

    Accurate calculations ensure the HVAC system performs correctly in Florida’s climate.

  • Residential projects must comply with the Florida Energy Conservation Code, which includes:

    • Manual J load calculations

    • Manual S equipment selection

    • Manual D duct design

    • Envelope insulation values

    • Window and door performance

    • Mechanical system efficiency ratings

    Energy calculations are required for all new homes and most additions.

  • Commercial buildings must meet more complex energy code requirements, including:

    • HVAC system efficiency

    • Ventilation and outside air calculations

    • Economizer requirements (where applicable)

    • Envelope insulation and glazing performance

    • Mechanical system controls

    Virtually all jurisdictions require COMcheck to verify compliance.

  • Energy calculations are used to demonstrate compliance with the Florida Energy Code. These calculations include:

    • Heating and cooling loads

    • Envelope performance

    • Mechanical system efficiency

    • Ventilation assumptions

    • Infiltration rates

    • Window and door specifications

    Accurate energy calculations help avoid permitting delays and resubmittals.

  • COMcheck is a federal compliance tool often required for commercial projects in Florida. It verifies:

    • Mechanical system efficiency

    • Ventilation requirements

    • Envelope performance

    • Lighting compliance

    COMcheck is typically submitted alongside mechanical plans and energy calculations.

  • Building departments frequently reject energy documentation due to:

    • Incorrect load calculations

    • Oversized equipment

    • Missing ventilation data

    • Inconsistent envelope assumptions

    • Outdated code references

    • Missing COMcheck documentation (commercial)

    Accurate, coordinated documentation prevents delays.

  • Florida Premier Mechanical provides:

    • Energy calculations

    • Manual J/S/D

    • COMcheck documentation

    • Permit‑ready mechanical plans

    • Residential and commercial HVAC design

    We ensure your project meets the Florida Building Energy Code and passes permitting smoothly.

  • Whether you’re building a custom home, completing a tenant build‑out, or preparing for commercial permitting, we provide accurate, code‑compliant documentation that keeps your project moving.

    Let’s work together to get your project approved.