Hi, My contractor is proposing and alternative method to sealing the air conditioning ducts. They would like to use a foam for the duct end that would be air tight.

Dear all, we have a project with a complete demolition of an old building on the project site then ditching for the new foundation. We are not sure if this credit is relevant to the demolition pr

We are going to apply for 1 point in credit IEQc3.1 but the Contractor is trying to avoid any ventilation during construction: - no natural ventilation - no ventilation by permanent system - no any

In anticipation for a large dust kick-up during finish installation, our project is looking into placing an additional cloth filter on the return air grilles (in addition to the MERV 8 filter).

Is the "replace all filtration media immediately prior to occupancy" required for washable filters as well? Thanks in advance

I am wondering if you can obtain the credit for Construction IAQ management plan DURING CONSTRUCTION along with BEFORE OCCUPANCY or if it is just one credit or the other.

We are currently working on a LEED project where a significant portion of the finished space will classify as “Clean Room” under ISO 14644-1.

Dear all, I actually do know what is an absorptive material but only by logic/sense.

Our MEP sub-contractor need to clarify if we can use an smoke capsule for duct leakage test, prior to final air leakage test since the project specs is giving a small allowable 1% from basis of des