I have a new school project which currently has ionization devices throughout the HVAC RTUs.  These ionization devices reduce the required outside air.

Dear all, 
I need your professional opinion about a project that I am currently working on.

For the insulation category, the credit language indicates that "At least 75% of all insulation, meets the VOC emissions evaluation." However, there is no further information to indic

Hi, we are consisering options for our high process load building in meeting the minimum requirements of the energy credit. 

I have a project in a peculiar situation that is not addressed outright by the guidelines language and I can use some help in interpreting the rules. 

Can you meet the enhanced ventilation performance criteria by providing >30% ventilation for the building as a whole, even if you do not meet this performance for all zones/spaces?

The performance period for our project is only 90 days.

I am working on a retail project with three restaurant spaces. I got a comment below from the LEED reviewer. 

Our project has a porcelain tile floor with an anti-fracture and waterproofing membrane under it. Does the membrane product need to meet requirements for IEQc4.3?

Hi everyone,