Major renovation energy model

Ron Dean

Sumac Inc.

LEEDuser Basic Member

20 thumbs up

October 7, 2014

I am working on the energy model of an renovated building, where only the structure will remain (LEED CS). It is located in a corner, attached to other buildings on both sides. Thus, the orientation is defined. Should I rotate the baseline model? How does ASHRAE 90.1 defines an existing building? Thanks.

Post a reply

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Tue, 10/07/2014 - 15:14

For the purposes of Table G3.1-5 (Baseline) (f) I do not think it is an existing building envelop. Relative to the rotation I think you could make the case that you would not need to perform any rotations since the structure is fixed. The words in italics within the standard are included in the definitions.