We are building a new building with concrete precast wall and roof panels with a concrete slab-on-grade.

SMACNA standard recommends under Pathway Interruption (IAQ Management Plan) that : "Depending on weather conditions, the contractor should ventilate using 100% outside air to exhaust contaminated a

Hi. At what moment of a project does the IAQ reporting need to occur?

**I did post this under the IEQc3.1 credit in Schools, too. My project is a school, but I wanted to make sure this question was seen, as my question is not "school only".

I am working on a project with an IAQ plan that was followed during construction.

We have a residential project that wishes to apply for LEED-NC, due to climate conditions no HVAC system will be implemented and 100% of ventilation will be natural (no mechanical equipment at all)

Hello - I'm working on a project in Japan, and the MERV rating system is not used here.

Reference guide Addenda allows to use filtration media with a minimum dust spot efficiency of 30% or higher and greater than 90% arrestance on a particle size of 3–10 "µg". I suppose it is "µm" no

We are currently working on a LEED project where we are using temporary direct fire natural gas heaters for winter heat.