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Is it possible for the flush-out start date to vary by ventilation zone?

Should a parking garage be included in a flush-out, if it is in a basement and not fully open to the outdoors?

Do the outdoor air minimum quantities have to be met for each individual space, or for the building square footage as a whole?

Do non-regularly occupied areas such as bathrooms and corridors have to be flushed-out?

For LEED NC addition projects, do existing non-renovated areas need to be flushed-out or tested?

For IAQ testing, how many sample points are necessary in non-mechanically ventilated spaces?

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I'm confused about the 11/1/2011 LEED addendum that removed the "1/25,000 SF or each contiguous area whichever is larger" language from the credit requirement. How do we determine the number of sampling locations for testing?

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CI-2009 IEQc3.2:Construction IAQ Management Plan—Before Occupancy

Temperature and Humidity Monitoring During Flush

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Nancy Henderson
Managing Member
ArchEcology, LLC
LEEDuser Basic Member
67 thumbs up

Is it part of the requirement of this credit to monitor temperature and humidity in the space during the flush out - or is it sufficient to provide the temperature set points and calculate the resulting humidity? We have had reviewers asking for how temperature and humidity were verified during the flush out. Not all of our projects have BASs, but we could do temporary trend logging if required.

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Dylan Connelly
Mechanical Engineer
Integral Group
LEEDuser Expert
342 thumbs up

Wed, 05/23/2012 - 00:17

Nancy, It may depend on the project reviewer. In some cases we have been able to prove based on outside conditions that the humidity and temperature in the space maintained within the 60%, 60F requirements. Temporary trend logging is the safest bet and may save the design team the potential of lost time due to answering LEED review comments. If possible write verbiage into the commissioning contract or design documents that include temporary logging of temperature and humidity during the flush out as a requirement.

Tue, 03/13/2018 - 15:01

Dylan,  The credit also requires "log of dates, hours and recorded tempertures and humidity". This mean that the flush out report should include data every hour? one hour per day?. We wont to know the minimal periodicity of log data needed to comply this credit. There is a standard for this?    

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