I am working on a project which has an employee locker room, where truck drivers will come to change or shower after their shifts once a day. It isn't a heavy-use locker room like you'd find in a school. I'm not finding any spaces in ASHRAE 62 Table 6-1 that look very similar to this usage. What would be a reasonable People Outdoor Air Rate and Area Outdoor Air rate for such a space? The ASHRAE 62 Users Manual Table 6A might also shed some light.

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Lawrence Lile

Chief Engineer

Lile Engineering, LLC

LEEDuser Basic Member

59 thumbs up

Wed, 10/29/2014 - 17:22

After studying this for a while, I've understood that areas in Table 6-4 may simply require exhaust but no outside air. I haven't found anything in the standard that just comes right out and says that spaces requiring exhaust don't need any fresh air (perhaps a sharper eye than mine can find it?) however the spaces in table 6-4 requiring exhaust are not listed in Table 6-1. The IEQ Space Matrix from USGBC does list locker rooms as spaces requiring compliance with ASHRAE 62, but doesn't provide any more guidance. Failing that, I could probably argue that the space should recieve 0.18 CFM/sft, and 10 CFM per person, among the higher rates int he table, as well as the required exhaust. I am not sure that would be the right approach.

Andrey Kuznetsov

ESG consultant, LEED AP BD+C

Self Employed

LEEDuser Basic Member

36 thumbs up

Fri, 12/19/2014 - 14:17

There are eight types of premises in both tables - 6-1 and 6-4: barbershop, beauty and nail salons, pet shops (animal areas), cells with toilet (in 6-1 just cells), educational science laboratories (in 6-1 science laboratories and university/college laboratories), woodwork shop/classrooms (in 6-1 wood/metal shop), art classrooms, arenas (in 6-1 sports arena). In addition you can consider as pairs "storage rooms - storage rooms, chemical", "shipping/receiving - parking garages". What about exhaust makeup per table 6-4, there is point 6.2.8 ... . Exhaust makeup air may be any combination of outdoor air, recirculated air, and transfer air. Concerning the outdoor air rates for locker rooms - you must rigorously prove that chosen rate is sufficient in terms of Table 6A, and be 100 % sure that you can convince the reviewers that you are right.

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