To reduce indoor water consumption.
Nonresidential buildings, mixed-use buildings, and multifamily residential buildings four stories or moreFor new buildings and buildings undergoing major renovations as part of the project, reduce indoor water usage by an average of 20% from a baseline. All newly installed toilets, urinals, private lavatory faucets, and showerheads that are eligible for labeling must be WaterSense labeled (or a local equivalent for projects outside the U.S.). For the fixtures and fittings listed in Table 1, as applicable to the project scope, reduce water consumption by 20% from the baseline. Base calculations on the volumes and flow rates shown in Table 1. The design case is calculated as a weighted average of water usage for the buildings constructed as part of the project based on their floor area.
Table 1. Baseline water consumption of fixtures and fittings
New single-family residential buildings and new multiunit residential buildings three stories or fewer90% of residential buildings must use a combination of fixtures and fittings that would earn 2 points under LEED v4 Building Design and Construction: Homes and Multifamily Lowrise WE Credit Indoor Water Use.
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