Dear all, Since October 1, there were updates on VOC requirements, but the calculator does not appear to have been updated.

Dear all, We're working on a HC project in Mexico, but we seem to be having trouble complying with what is required for process equipment in table 5 of this pre-req.

Looking for clarification on ‘Total materials cost’ number from BPDO calculator (Materials tab). Where does ‘Total materials cost’ number come from?

How is it possible to take advantage of energy use reduction due to DR systems in EAp2-EAc1 energy modeling? Is there any reference guide or document as those for the "key cards" for example?

I have a client that is developing an open-air type shopping center (i.e., the tenant stores are arranged in blocks that open to exterior interconnecting walkways) and is willing to pursue LEED cer

Must be the year of metering after the registration of the project or can be used a year of metering of before?

I see that REACH is listed as an international compliance path, what about a US based project that is using some REACH compliant materials - some specialized application flooring, for example, is m

Developing 130 unit condo project. 24 are 2 bdr (average size 36% below ES ref home). Rest are 1bdr (average size 24% below ES ref home).

I'm working on a convention center, and they don't buy many office supplies. Their major purchases are cleaning supplies ( and fits in the IEQ- green cleaning credit) and uniforms.

Is there any mandatory filter efficiency requirement (MERV) for projects located in areas with a very high PM2.5 levels? Is it mandatory for ASHRAE 62.1-2010 requirements?