Hello, I am curious about implimenting natural ventilation in climate zone 6 where the winter temperatures can be very cold.

Can anyone please clarify which, if any, ventilation requirements are applicable to shower spaces whithin a sports facility (e.g. exhaust rate per shower) under ASHRAE 90.1 (2007)?

Has anyone had an issue with complying with ASHRAE 62.1 for natural ventilation of a space that is being used as a maintenance garage? We have 3 garage doors that are open to a large garage type a

Our project is use VRF system to keep the space cool. We also provide dedicated injection fan (DOAS) as to meet 62.1 requirement. Most space will have indoor cassette unit.

Is it safe to say that if a project acjhieves 60% improvement over ASHRAE 62.1 outdoor air ventilation rate that the project would be likely to receive an innovation credit if applied for?

What is the difference between breathing zone outdoor airflow and room outdoor airflow rate? How do I find the room outdoor airflow rate for bedroom/living room type spaces Thanks.

I noticed, I cannot enter rooms that require exhaust like restrooms and lockers. Do I exclude them on the excel spread sheet?

we have a new addition added to an existing facility.

Dear All:- we have some doubts in Ez (ZONE AIR DISTRIBUTION EFFECTIVENESS) selection in ventilation design we are supply fresh air using Fresh air fans, ERV, Treated fresh air units, Evaporative