LEED V4 Homes Total Reduction Calcukator

Michael Glincman

LEEDuser Basic Member

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Project location :

United States

January 14, 2019

Hello All,

I was filling out the Total Reduction Water Calculator when I hit a snag. The project is multifamily. For non-residential spaces I am not sure what I should put down for the occupancy for fixtures and such. For example, bathroom faucets there is a gym in the building and there is a provided bathroom. Within the calculator the only options it gives for occupancy is Efficiency then 1 Bedroom, 2 Bedroom ect... I am not sure what occupancy to put down for non-residential space. Also it looks as if I can only chose the unit options, nothing else for occupancy. Any help is greatly appreciated. Thank you.

Mike Glincman

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Carissa Sawyer

Certification Team Lead

Green Business Certification Inc. (GBCI)

LEEDuser Premium Member

11 thumbs up

Wed, 01/16/2019 - 21:56

Mike, For non-unit fixtures, the project has two options: 1. Do not include the fixtures in the calculations as long as the fixtures meet or exceed the performance of the in-unit fixtures. 2. Include the fixtures in the calculations and use baselines for the fixtures for the non-unit spaces from the NC prerequisite, Indoor Water Use Reduction: https://www.usgbc.org/node/1734960?return=/credits. For Option 2, determine the occupancy for the non-unit spaces following NC guidance (Getting Started, Occupancy) and use the Default Uses per day called out in the NC v4 Ref Guide (Table 8) in the prerequisite noted above. Once the uses per day have been determined, convert that occupancy per unit and add that as the appropriate number of one-bedroom apartments (Non-Residential spaces). Carissa

Michael Glincman

LEEDuser Basic Member

0 thumbs up

Thu, 01/17/2019 - 17:18

Carissa, Thank you so much for the response. I will go pursue option 1 as the fixtures in non res spaces meet the efficiency of the fixtures in the Unit. Mike G