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Credit language straight from USGBC
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6 Comments
How to document the water use reduction for CS?
Hi everyone,
how do we have to document the WE P1 for a core & shell building? WE P1 is according to Appendix 4 (Reference Guide) Case A. " When documenting with Case A credits, project teams should treat anticipated tenant work as neutral". What does neutral mean and how do can we document it? The problem is, the owner is responsible for the toilets but the tenant can also install showers and kitchen sinks, but we don´t know yet who will be the tenant in the future.
Many thanks in advance
Tatjana
Karen Blust replied Green Building Consultant, CTG Energetics, Inc. Jun 28 2010
In your case, you must clearly identify which components of this credit will be implemented as part of the developer’s scope of work (toilets and lavatories?), and which portions will be part of the tenants’ scope of work (showers and kitchen sinks). You would need to document your tenant work (showers and kitchen sinks) as ‘neutral’, meaning that you would not calculate any water savings for these fixtures. For example, the showers would have both a baseline and design case water use of 2.5 GPM. If water use calculations include improvements to the tenant fixtures, then the project must provide tenant sales or lease agreements confirming the use of water saving fixtures (e.g. the installation of a shower that uses less than 2.5 GPM).
Multi-Residential building with less than 10% of retail area
I am working on a multi-residential building with less than 10% of gross retail area in the ground floor. The project is under LEED CS and the owner will provide all fixtures for the multi-residential units, but provide any fixture for the retail space is not in the scope of the project (there will be left just the water taking point so the future tenant can install whatever is needed).
Should it be included in the calculation the FTEFull-time equivalent (FTE) represents a regular building occupant who spends 8 hours a day (40 hours a week) in the project building. Part-time or overtime occupants have FTE values based on their hours per day divided by 8 (or hours per week divided by 40). Transient Occupants can be reported as either daily totals or as part of the FTE. Residential occupancy should be estimated based on the number and size of units. Core and Shell projects should refer to the default occupancy table in the Reference Guide appendix. All occupant assumptions must be consistent across all credits in all categories. and transient water usage occupants for the retail area if the water fixtures and so on are not in the project scope? (calculated by the CS Appendix 1 table 1 FTE and Transients based on square footage)
Karen Blust replied Green Building Consultant, CTG Energetics, Inc. Jul 28 2010
No. If the retail plumbing fixtures are not part of the project scope, then the water use calculations would not include the retail occupants or plumbing fixtures.
Different Water-Pressures
Hi,
I am working on a project in Poland and the standard water pressure in the building as provided by the water supplier is at 2.8 bar or 40.6 psi. How can we adjust it to create a comparison to the required 60 psi as given in the IPCInternational Plumbing Code?
Can we just calculate what will be the flow rate at 60psi?
Kind Regards
Matthias
Tristan Roberts replied Editor – LEEDuser, BuildingGreen, LLC Aug 20 2010
I think a forum discussion on EBOM WEp1 will be helpful to your question. Please review and post back with any additional questions.
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