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.

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.

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?

We are familiar with the requirements of Version 3 but not Version 4 or 4.1  If someone had a good example or template of a prurchasing policy that would be very helpful.  

In both LEED BD+C: New Construction v4.1 and LEED BD+C: Healthcare v4.1, under Requirements in the credit language, USGBC uses the title text: "Percentile of Rainfall Events (1-3 points except Heal

Hello,

Hello.  We have documented Triple Bottom Line Analysis using Autocase for a Warehouse and Distribution Center.  The effort returned very interesting results in terms of values and particu