The prescriptive path under Option 3 still references the "Advanced Buildings Core Performance Guide".  However, this guide has been "sunset" by NBI and no longer exists.  Typic

Hi all, does anyone have any reference to USGBC guidance or experience in modeling CHP when it is electricity lead not thermal lead? 

i need to know what is required to be filled exactly in roof construction and whatis meant by building ID ??

We have a project space where the built up area is 2 lakh sqft out of which the conditioned space is 1000 sqft. Is energy modeling necessary in this scenario?

As we are outside of the USA, ASHRAE 90.1:2010 is a new requirement that came with v4 and our designers have no experience in interpreting and applying the mandatory requirements.

Has USGBC issued any equivalency for Title 24 (vs ASHRAE 90.1) in LEEDv4 EA credits yet? I've seen comments saying it can take a while. Just wondering if it is on the horizon for LEEDv4 or not?

A building is composed by three towers that have the basement, the ground floor, and the first floor in common. The system for the baseline model shall be System 8.

I have a HVAC system with labs on it requiring 100% outside air systems. Following all the guidance in 90.1 these spaces require a dedicated Sys 5/7 because they are over 5,000 cfm.

If the envelope is demolished and then rebuilt with the same shape does Table G3.1 part 5., baseline, point f apply?

Do we need to follow addendums of ASHRAE 90.1 2010 in relation to Appendix G for compliance? For instance, addendum F restricts window to wall ratio to 34% for hotel/motel with rooms greater than