Hello, May I seek anyone's advice on how to determine the lighting power density for data hall while there is no criteria in ASHRAE 90.1? I have ever heard of 0.8 W/ sf (treating similar to activ

We are working on a project where there is not enough room for on-site separation, and the commingled waste will be picked up by the sorting facility.

In LEED V4 O+M a project must: • All meters must be recorded at least weekly • Commit to sharing with USGBC the resulting water usage data for a five-year period Is there not frequency of recordi

I am working on a presentation to educate my office on Lv4. This being a new credit I don't think I am totally understanding the requirements.

Does anyone know if this applies to new construction only or do renovated spaces need to be upgraded to meet this? My project is 17% new/83% renovation.

Art classrooms are considered both in Tab. 6-1 and in Tab. 6-4. If we respect Tab. 6-4, could we avoid the verification of Tab. 6-1 (i.e. could we avoid the outdoor air supply)?

For chillers in EnergyPlus I have to provide the data “Minimum Unloading Ratio”.

If we have a ceramic tile wall, do we count the EPD's (if we could get them) for the Tile separate from the Thinset and the Grout, or would all three products be considered as 1 EPD?

It still isn't clear to me what is meant by "USGBC approved environmental product declaration framework" which is applicable for pursuing either option 1 or option 2.

LEED v4 for homes Table 1:Baseline Waste list waste by both bedrooms and conditioned space but there is no guidance as to when one should use conditioned sf vs bedrooms.