ASHRAE 90.1-2007 has some additional requirements compared with 2004. Read through the standard for a complete update. The following are some samples.
- All exterior walls must be installed with rigid insulation of the spans across all floors. This can be accomplished by placing the insulation outside the air barrier.
- All exterior doors must be tested for maximum air leakage rate.
- All spaces must have independent lighting controls.
- Occupancy sensors must be installed in some spaces.
- The minimum efficiency level of specific mechanical equipment has been raised.
Project phase:
Credit tip type:
