We have a hotel where some rooms have both, showerheads and baths. One showerhead placed overhead in the bathroom, and the bath placed in the middle of the room. They have different flow-data. According to BD+C Reference Guide, the calculations for WEp1 only include the following fixtures and fittings (as applicable to the project scope): water closets, urinals, lavatory faucets, showers, kitchen sink faucets and pre-rinse spray valves. Should I consider baths?
In case I should, bath will be used much less than showerheads, and if bath is used, shower won't, but we do not know how much each of them will be used. Which flow data shall we use? The highest flow or the average flow, or?
Thanks a lot
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Michelle Robinson Schwarting
148 thumbs up
September 30, 2015 - 10:51 am
Do you mean you have a separate shower and a separate bathtub with no showerhead?
If the bathtub does not have a showerhead, it's exempt from the calculations because the purpose of the faucet in the bathtub is to fill the bathtub to the amount desired, and not related to amount of time someone is using it.
If the bathtub does have a showerhead, it will need to be included in the calcs. I would then recommend doing a separate user groups/fixture groups -- one for people using the shower and one for people using the bathtub's shower. Include a narrative explaining how the bathtub is estimated to be used X% amount of the time and the shower is expected to be used (100-X%) amount of time. And then you multiply the total users by X% to assign some to showers and some to the bathtub. (Note: There is a chance the LEED Reviewer could require you to assume all the people, since they have access to both, would use the worst case scenario all the time, but I'd make the argument and wait to see if that's what they say.)