Hello, We have a CI project undergoing demolition where we needed to excavate under an existing concrete slab. After the slab was removed, we found 'garbage' under the slab.

Dear all, Appendix G states the following: "All conditioned spaces in the proposed design shall be simulated as being both heated and cooled even if no heating or cooling system is to be installe

Hello friends, what if I got the real recycled content from a supplier of steel and it was less than 25%, can I use the LEED default value then? Is there a limitation for using this exception?

I am looking for guidance on the following credit requirement: “If a façade extends along a sidewalk, no more than 40% of its length or 50 feet (15 meters), whichever is less, is blank (without do

The credit criteria for Option 4 clearly states that one LE/FE vehicle must be provided per 3% of the FTE . . .

I have a situation where our client is very concerned that GWB with recycled content needs to be specially sealed in order to maintain a healthy environment.

Footnote #4 on page 221 of the LEED-NC v2009 Reference Guide expressly notes that "The same CxA overseeing the enhanced commissioning tasks must also oversee the fundamental commissioning tasks."

We are constructing a new school on a U.S. Army base.

We are working on a small building, and it will have only one small HVAC split system.

Should the wall base material be included in the EQ4.3 credit for Flooring or is it only for resilient, stone, and carpet?