I have a HVAC system with labs on it requiring 100% outside air systems. Following all the guidance in 90.1 these spaces require a dedicated Sys 5/7 because they are over 5,000 cfm.

I recently received a Design Review comment advising that the IAQ procedure included in Chapter 6 of the ASHRAE 62.1-2007 is not an acceptable tool to demonstrate compliance.

We have a university lab project that is renovating a select number of rooms, with varying materials/ systems being replaced at different times.

Hello there, For garage spaces that are designed for CO/NO₂ monitoring and have a neutral (Exhaust air – Supply air = 0) pressurization.

Has anyone successfully used an Athletic Track as a "fitness center" option? Definitely open the public and seems like it should fly. Thanks!

What to do if project owner will not supply project budget?

I am working on a project that is 15,00 sqft renovation and 8,000 sqft new construction (addition).

Systems Manual; on our Const. Phase submittal the reviewer stated we need to include a Systems Manual. It appears this refers to the Training of staff on the bldg.'s.

Hi, we have a building that share some mechanical equipment with the adjacent building.

We are trying to figure out how to translate our ITE calcs properly for an elementary school project.