Reviewer tip: Fixtures and fittings as a sub metered system in WEc Water Metering

Green Building Team on February 28, 2021

Rating System/Standard
LEED
Theme
Green Building

To earn LEED v4/v4.1 BD+C WEc Water Metering, the project must install permanent water meters for at least two water subsystems. In order to contribute, at least 80% of a subsystem must be metered directly, or must be deduced by subtracting all other metered subsystems.

If you want to include indoor plumbing fixtures and fittings as a contributing subsystem but are not directly metering indoor plumbing fixtures, remember that the consumption of fixtures and fittings can only be deduced if ALL other subsystems (including all process water) are metered. Typically, water consumption of appliances like dishwashers and clothes washers, and process water associated with housekeeping rooms, are not metered. This means that the water used by fixtures and fittings cannot be deduced, and this subsystem should not be claimed.

More News

New ACPs and Pilot Credits available with LEED February 2026 Addenda 

The first of new LEED v5 Regional Alternative Compliance Paths (RACPs) is now…
March 12, 2026

Can $10 per square foot result in 40% carbon savings?

March 11, 2026 (Ottawa, Ontario) – Deep retrofit momentum is growing across Canada,…
March 11, 2026

Streamlining to LEED v4/4.1 documentation process and reviews continues

Last month, an important change to the documentation and review process was highlighted…
March 10, 2026

Formal exemption provided for tobacco smoke control for cultural ceremonial practices in LEED

The LEED EQ prerequisite Environmental Tobacco Smoke is intended to address health concerns…
March 9, 2026