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FAQs about IEQc5 :

Should track-off mats being used on the project to meet IEQc5 requirements be included in IEQc4.3 credit requirements?

What is the definition of a high-volume copier?

Do I need to provide dedicated exhaust for my printer or copier?

I do not have 10' of space inside my building entrance to install a walk-off system. Can I include one on the exterior? Can the shape be irregular?

What does ‘regularly used exterior entrance’ mean and how do I know which of my building entrances falls under this category?

Are entryway mats required for a building entrance from another building?

Can I use carpet tile as a track-off system? What about carpet?

Our building has a green cleaning program and is earning an ID credit for it, based on the LEED-EBOM IEQc3 requirements. Can we skip the exhaust requirements for our janitor rooms?

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NC-2009 IEQc5:Indoor Chemical and Pollutant Source Control

Exhaust Rate of at least 0.5cfm/sq.ft

Maya Karkour

EcoConsulting

LEEDuser Basic Member

549 thumbs up

August 1, 2011

Hi All, Assuming that one of the hazardous chemical area also has a fresh air supply (in addition to the exhaust), how do we determine if the min exhaust rate (0.5cfm/sq.ft) is achieved. Are we supposed to compute: Exhaust (cfm) / Area (sq.ft) ? OR [Exhaust (cfm)- Supply (cfm)]/ Area (sq.ft) Thanks for your clarification

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Dylan Connelly

Mechanical Engineer

Integral Group

LEEDuser Expert

342 thumbs up

Tue, 10/18/2011 - 22:29

Exhaust (cfm) / area (sq.ft) is correct. For differential pressure you take into account the supply cfm.

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