Energy Code Compliance
Meeting minimum energy efficiency standards required by building codes
Energy Code Compliance
Energy code compliance ensures homes meet minimum efficiency standards for insulation, air sealing, windows, and mechanical systems. San Diego follows the International Energy Conservation Code (IECC) with amendments. Requirements include: R-49 to R-60 attic insulation, R-21 wall insulation, R-30 floor insulation, U-0.30 or better windows, and 90%+ efficient furnaces. New construction and additions must demonstrate compliance through calculations or prescriptive path documentation. Some jurisdictions require blower door testing proving air tightness.
Why It Matters
Energy codes reduce utility costs and environmental impact. Proper insulation and air sealing can reduce heating and cooling costs by 30-50% compared to older homes. San Diego's 6,000+ heating degree days mean winter heating dominates energy costs—improved building envelope directly impacts comfort and bills. Compliance isn't optional: building inspectors verify insulation installation, check window labels, and review HVAC equipment efficiency ratings. Plan energy compliance details during design to avoid expensive changes during construction.
Key Energy Code Requirements
- Attic insulation: R-49 to R-60 depending on insulation type
- Wall insulation: R-20 to R-21 cavity plus continuous insulation options
- Floor insulation: R-30 over unconditioned spaces
- Windows: U-factor 0.30 or lower, visible light transmission standards
- Air sealing: Comprehensive sealing with optional blower door verification
- HVAC equipment: 95%+ AFUE furnaces, SEER 14+ air conditioners