The user shall provide accurate descriptions for all building envelope assemblies including exterior walls, windows, doors, roofs, exterior floors (including floors above unconditioned spaces), slab-on-grade floors, below grade walls, and below grade floors. The user shall provide data for all of the required descriptors listed in Section 3.4 of this document that correspond with these assemblies. However, the following exception applies:
· Exterior surfaces whose azimuth orientation and tilt differ by no more than 45° and are otherwise the same may be described as a single surface or described using multipliers. This specification would permit a circular form to be described as an octagon.
For unenclosed spaces such as parking garages, crawlspaces and attics, refer to Section 2.4.3 of this manual for modeling requirements.