Part 1 — Scope and Application
Exception: The following need not comply provided the energy use of the building is not increased:
- Those with a peak design rate of energy usage less than 3.4 British thermal units per hour per square foot (Btu/h • .ft2 (10.7 W/m2) or 1.0 watts per square foot (watt/ft2 (10.7 W/m2) of floor area for space conditioning purposes.
- Those that do not contain conditioned space.
- Buildings and structures for which heating and cooling is supplied solely by utilization of non-purchased renewable energy sources including, but not limited to, on-site wind, onsite water or on-site solar power, or wood-burning heating appliances that do not rely on backup heat from other purchased, non-renewable sources.
Buildings approved in writing by such an energy efficiency program shall be considered in compliance with this code. The requirements identified as “mandatory” in Chapter 4 shall be met.