Hi, We are pursuing the credit by covering 50% of the parking places with a white polyethylene shade cloth of 70% density.

I am part of a LEED NC 2009 for Retail project that intends to pursue Option 2 -- Air Quality Testing -- for this credit.

To achieve the required time needed for flush out, do we only take into consideration the OA louver volume (CFM)?

Can someone tell me how difficult this modeling software is to use, and how long would it take an engineer who isn’t already familiar with it to get up to speed?

We have just received the Preliminary Design Submittal Review for our project.

Hi, We have existing Library project with combined multiple zone and single zone.

I think I know the answer, but can duct work be counted towards material re-use?

Hi, We are doing a project to develop a manufaturing faciltiy for our company.

No disputing that the requirements of IEQc5 are both sensible and valuable,, so much so that our firm now incorporates these provisions in ALL projects, regardless of LEED certification intent.

Biao, welcome to the LEEDuser forum!