A little confused on this aspect of the credit....I was told buy a colleague that this credit can only apply to newly installed fixtures? and not base building restrooms that were not modified? Please confirm because I was under the impression that you can use the base building un modified systems that serve the office space even if not part of the Commercial Interior remodel...In fact since that is what the tennant is using, Thats is what you have to make the calculator for. *As long as it meets or exceeds water sense. Please help. And is it also a requirement that you use alternative water sources? Just a little confused on this credit...Thanks for invite you can give me! This is for a v4 ID+C : commercial Interiors project.
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Emily Purcell
Sustainable Design LeadCannonDesign
LEEDuser Expert
371 thumbs up
March 29, 2018 - 9:50 am
Hi Robert, existing fixtures should be included. I can see where the confusion comes from - for the *prerequisite*, you would only consider new and existing fixtures inside the tenant space. But for the *credit*, the rating system asks you to calculate using "fixtures and fittings necessary to meet the needs of the occupants. Some of these fittings and fixtures may be outside the tenant space (for Commercial Interiors)" So for the credit, you're looking at all fixtures the tenants will use, new and existing, in the tenant space or in the base building.
There is no requirement to use alternative water sources. The rating system clarifies that alternative water sources *cannot* be used to meet the minimum water use reduction in the prereq - you have to achieve that through efficient fixtures. For the credit, you can use alternative water sources to gain additional credit.