90.1 AppG G3.1.2.8 says the return/relief fan should be sized for max (SA-OA, 90%*SA) [cfm]. But in table 1.4. the allowable fan power is only based on the supply fan power.

For an existing building undergoing major renovation how should the existing water fixtures be handled as far as WE prerequisite is concerned?

Two questions for two projects: 1) If there are many hundred secure bicycle racks just outside the building, outside of the zero-lot-line LEED boundary, none of them especially dedicated for the p

Is there a comprehensive directory of all the LEED certified recycling sites by state (or otherwise categorized)? I would love to see it.

I've noticed that dual-flushflushometer retrofit kits are mentioned as a way to earn this credit on existing commercial toilets (rather than replace the entire toilet); however, there is no mention

I have two separate questions: 1. If we have a hydroponic green house, can we size it based on FTE counts and not the 1,500 sf minimum that is specific to hydroponics? 2.

Do sinks in exam rooms need to be included in the calculations? They are primarily used for handwashing. If so, are they entered as 'sinks' or 'lavatories' as the baseline? Thanks.

Hi all, I'm working on a LEED-NC v3 major renovation project that has veered just below it's 50% MRc2 CWM target and have 2 questions below: Please note: We are pursuing 3 pts for the MRc1.1 Build

Has anyone had success with (2) 2-hr sessions being accepted as compliant (by GBCI) for the integrated design team charrette?

I wonder if there is a rule on how much the difference between the actual and modeled floor area can be in LEED. Thanks