How do you meet and demonstrate requirements of EApr2 if elements of the existing building envelope does NOT meet 90.1-2007 Prescriptive measures? One thought: Can you use Building Performance Rating( appendix G) to demonstrate overall performance and sidestep existing building envelope weaknesses?
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5907 thumbs up
January 26, 2016 - 6:02 pm
You are only required to meet the mandatory and prescriptive measures associated with your scope of work. So if you are not replacing the windows or adding to the walls you do not have to meet those requirements.