To whom it may concern,

I believe there is an issue with the v2009v4v4.1_Minimum_IAQ_Performance_Calculator_v04.xlsm "Summary" Tab.

Indirect measurements such as temperature or current transducers are not allowed for VAV systems, but is it allowable to measure the pressure difference over the fan and calculate outdoor air volu

Dear All,

Dear All,

What is the definition of 'view factor of 3 or greater'?

Thanks!

Has anybody used the EPA LEED CHP Calculator on a LEED project?  As the the name suggests, it was made specifically for LEED projects (though it states for early assessment only).  W

Hi, We have an expansion project with operating room, offices, cleaning space for the entire hospital.

We are currently working on a park Shelter in a public park In the united states. The shelter is open for bookings to the public for fixed periods at a time.

For HVAC Background Noise, do all spaces have to use the same Sound Rating Method (NC/RC, dBA,
dBC, RC(N)), or can these vary by individual space or by space type?

Hi

My proposed building has a number of unconditioned spaces (per definition according to Appendix G):