DRAFT GreenPoint Rated Existing Home Rating Manual version 6.0 | Page 30

D

Structural Frame and Building Envelope The following criteria apply to multifamily projects only: The system should capture rainwater and plumb it to offset potable water use for nonpotable demands, such as landscape irrigation, flushing toilets/urinals, or laundry. Captured water must offset at least 25% of the demand for indoor and outdoor non-potable water. Credit for this measure may be achieved by using a rainwater harvesting system and/or a graywater system. VERIFICATION Documentation: The Rater will collect the following: ? ? Specifications confirming the size of the cistern(s) for single family ???????
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