All,
I'm working on a high rise multifamily project, and I can't find anything in the reference guide about whether the ASE requirement applies for residential projects. I understand the need to mitigate ASE in a work setting, where glare presents a light quality issue, but I don't really see that it would be applicable in a MF setting. That's not to say that it doesn't make sense to have glare-control devices (shades) for all regularly occupied spaces, but would you still have to manage ASE in a residential setting? After all direct sunlight in a home is often considered an amenity, especially in heating dominated climates.
For the project in question, we would have to install a significant amount of external shading devices at a rather high cost, and the team is questioning the intent of the requirement. To me it seems that internal manual shades would meet the glare requirement in a residential setting, but I'm curious if USGBC or others have an opinion on this point.
Thanks,
Josh
TODD REED
Energy Program SpecialistPA DMVA
LEEDuser Expert
889 thumbs up
August 19, 2015 - 11:45 am
Joshua,
I have not seen or found anything that specifically states whether residential units must be included or can be excluded from the ASE calculations. I believe that residential units should be excluded because of the same reasons you have noted. The calculation requirements for ASE are from 8am till 6pm, typical times that people are not in their homes or units so why would you run sims for unoccupied times.
Maybe an inquiry via the USGBC help line in regards to this issue would be appropriate to get the issue to the TAG for a formal decision.
Dane Sanders
PrincipalClanton Associates
68 thumbs up
September 20, 2015 - 1:12 pm
Hi Josh,
The EQ TAG did some work earlier this year to revise the O+M Multifamily daylighting credit to adjust the minimum illuminance to 150 lux and maximum to 5000 lux, also allowing an exemption for the 5000 lux if blinds or shades are provided. You may be able to reference this until the TAG can clarify an exemption for ASE. Below is a link to the revised O+M Multifamily Daylight Credit:
http://www.usgbc.org/node/5643775?return=/credits/multifamily-existing-b...
Joshua Radoff
Renewable and Sustainable Energy Specialization Lead, MENVUniversity of Colorado Boulder
LEEDuser Expert
45 thumbs up
September 21, 2015 - 5:50 pm
Thanks Dane. This is helpful.
Josh