Why does the requirement of 0.5 cfm/sf exist when IEQp1 requires 0.5 cfm/sf as the minimum exhaust rate from such spaces (ASHRAE 62.1-2007 Table 6-4)? If you don't have at least 0.5 cfm/sf, you do

Does anyone know if dishwashing rooms need to meet the exhaust requirements listed in this credit?

We have a multi story underground parking structure that is exhausted with 26,000cfm P1, 32,000 cfm for P2 and P3.

Hi In our Project we can't apply deck-to-deck partitions in some janitor rooms so we are looking for (hard-lid ceiling) option.

Is a covered exterior grate system (e.g, outside a vestibule) at all high volume entryways an acceptable approach to credit achievement for IEQc5? Any advice or guidance would be most appreciated.

If i have a multifamily building with a common laundry room and say the housekeeping supplies will be kept in a separate janitorial storage closet elsewhere in the building, do both of these spaces

In our project, each janitor closet (only for the storage of cleaning equipment and common deterdent) is placed inside a restroom, occupying a toilet cubicle.

We have a project that has a washer & dryer in the corner of a building services room, for periodic/sporadic use.

In a manufacturing facility we have trucks and fork lift trucks entering the buildings.