Applicable Building Type(s)

New non-residential

Policy Requirement Level


Policy Sequence


Development Authority: International Code Commission

Implementation Authority: Municipal or county level government

Verification Authority: Code officials

Prescriptive Compliance path

The horizontal projection of that portion of interior space which is contained within exterior walls and which is conditioned directly or indirectly by an energy-using system.

Energy Requirements:


R value requirements are listed specific to wall type and climate zone.


Maximum area, maximum U values and SHGC are listed in table 502.3 (p. 32 IECC 2006)


Maximum 3% of surface specific U values for glass and plastic are listed in table 502.3 p. 32 (IECC2006)

Air Leakage

5.5 m3/h.m2 at 75 Pa for curtain walls and storefront glazing 18.3 m3/h.m2 at 75 Pa for commercial glazed swinging doors and revolving doors

Space Heating System

Mandatory provisions for calculating heating and cooling loads, equipment size ratios, thermostatic controls and energy recovery requirements are prescribed Performance efficiency requirements are prescribed using a mix of coefficients (SEER, EER, IEER, IPLV and AFUE) for listed types of systems. Design and controls including climate zone specifications are detailed (IECC 2006 pp.34-46)

Water Heating System

Equipment performance, temperature controls, heat traps, pipe insulation and pool systems are mandatory and prescribed


Lighting control systems are specified on pages 49-50 (IECC 2006) lighting power densities for interior lighting power allowances are given for specific building usage zones on p.50 (IECC 2006)

Renewable Energy

Pools deriving >60% heating energy from site-recovered or solar energy are exempt from pool specific energy saving measures for prescriptive approach. On site renewables are excluded from annual energy calculations for performance modelling approach.

Compliance Softwares:

End-uses considered:

Space cooling, Space heating, Water heating, Lighting interior, Ventilation

Performance Compliance path

Not a requirement for model based or prescriptive methods

Energy Requirements:



Climate zones