Hi everyone,
I'm working on an office building in which efficient bathrooms will be installed as part of the Core and Shell scope. On the other hand, tenants may or may not install plumbing fixtures in their spaces. From what i've read on this forum, if this is the case, we should consider tenant fixtures as neutral.
1.The problem lies in that we don't know how many fixtures will the tenant install, and by many people each of this bathrooms will be used. Therefore, it has been difficult to define the usage groups, in order to include the potential neutral fixtures in the template. Any idea on how to do this?
2. With our clients, we have explored the possibility of offering the tenants efficient fixtures as part of the deal, therefore ensuring the use of efficient fixtures in tenants spaces. But even though, without knowing who the tenants are and how many fixtures they would like to install, these tenant space bathrooms wouldn't be reflected in the floor plans, making us think that reviewers might get confused. Any past experience in cases such as this one?
Thanks for your help
Nadia Ayala
Architect / LEED AP BD+CKILTIK Consultoría
52 thumbs up
March 6, 2012 - 5:57 pm
Hola Luis Miguel,
Me queda una duda. ¿Tu proyecto es todo Core and Shell o lo consideras como NC y sólo una parte de renta?
Suponiendo que fuera CS completamente, tienes que ajustarte al CS Appendix 1: Default occupancy counts (pág. 611 de la guía 2009) en la totalidad de tu edificio.
Suponiendo que fuera NC con una parte de renta, tendrías que tomar esta misma guía para calcular los ocupantes sólo en las áreas de renta para determinar los usuarios que no puedes definir con información del cliente.
No importa que cantidad de muebles de baño tengas, ya que si te fijas, en los cálculos de la forma de LEED Online no te piden ingresar un número de muebles de baño, sino de usuarios. A través de esto se calcula la cantidad de agua utilizada, ya que existan o no muebles sanitarios instalados, estas personas tendrán que usar estos servicios en algún lugar del edificio.
Te sugiero crear un Reglamento de Inquilinos donde se estipule que cualquier mueble de baño instalado por ellos debe cumplir con los parámetros de eficiencia que LEED exige.
¡Saludos!
If your Project was considered entirely as CS, you’d have to stick to CS Appendix 1: Default occupancy counts (p. 611 LEED GBD&C 2009 Reference Guide) in your entire building.
If your project is registered as NC with a secluded CS area, you would have to take the same occupancy considerations for the CS space only, as you can’t define them directly with your client.
It doesn’t really matter the quantity of fixtures you have. If you search in the LEED Online form for WEp1, there’s no need to include the number of fixtures, but the number and description of occupants. Through this number you can calculate the amount of water used, because even if there weren’t “enough” water closets, people would still use sanitary fixtures the same number of times.
I suggest creating an Enforceable lease agreement or Tenant Guidelines Document in the tenant contract that integrates the specification for flow and flush fixtures to be installed.
Luis Miguel Diazgranados
Green Factory125 thumbs up
March 7, 2012 - 12:50 pm
Hi Nadia, thanks for your answer!
The project is a CS project, where the scope is common areas in the building.For the project we already have the expected occupancy counts, so we don't have a problem with that.
On the other hand, I know that the credit template doesn't ask for the numbre of fixtures. What I was talking about is that if we knew how many fixtures tenants will install in their spaces, it would be easier to define usage groups. ie: If the project had 100 FTEs, 7 bathrooms in the CS scope, and 3 bathroom in the tenant areas, I could define 2 usage groups, one with 70 people using CS bathrooms, and one with 30 people using tenant bathrooms.
Since I don't know the number of bathrooms installed by tenants, it's harder to define usage groups, and how many people will be on each of them. Any idea?
Finally, we might end up using the lease agreement for this credit, but we want that to be the last resort.
Thanks!!