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Things have gotten harder
Water-use reduction is a good opportunity for all projects to earn points. If you’re familiar with this credit from earlier versions of LEED, though, keep in mind that it’s gotten harder. LEED 2009 introduced WEp1: Water Use Reduction as a prerequisite, calling for a 20% reduction for all projects. In contrast with NC-v2.2 WEc3, which used to award one point for a 20% reduction, the points for 2009 now start with a 30% reduction with for two points, and go up to four points for a 40% reduction.
The baseline for measuring water savings has also become more demanding. The LEED 2009 baseline for commercial lavatory faucets is 0.5 gallons per minute (gpm), whereas the previous baseline was 2.5 gpm.
It’s still very doable
Even with...
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4 Comments
Compliance if there are no fixtures on the design
Hi,
The Owner is constructing a tower with high end tenants on the his scope. He wants to leave to the tenant the installation of the water fixtures to give them freedon on the design according their tastes. The core and common spaces have not restrooms considered. My question is:
To comply with the Prerrequisite, perhaps I could have some restrictions and requirements on the lease agreement. But how would be possible to comply with this credit is I cannot foresee the potential savings? moreover, how can I use the synergies that this credit has with the WEc2? Is it possible to have compliance on these credits with these conditions?
Perhaps you could provide a list of approved fixtures (based on flush / flow rates) that meet the credit requirements? Therefore, tenants would have some options they can choose from but would they all would still fall within the water use reduction goals for the project.
How do you calculate Transient visitors?
I can not figure out how to calculate this for a core and shell office building that is 3/4 leased.
You could do some kind of survey of the tenants.
Sound tough? You're going to love this suggestion: check CS Appendix 1 in the LEED Reference Guide for default occupancy numbers!
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