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PBI Services: Building Inspections - Thermal Imaging - Indoor Environmental Consulting

Indoor Environmental Consulting

 - Contact PBI for more information: Phone 516-295-2581 or 631-474-1534 or 212-789-9066

USBGC LEED IEQ CREDIT 3.2 Flush-Out Testing: Option 2, IAQ Air Testing

One full credit is offered by the US Green Building Council for LEED IEQ credit 3.2 in new and renovated buildings. This requires the air handling system in the building to be run, or the space “flushed out”, for a period of days or weeks ahead of occupancy. There is also the option of a two-phase flush-out, with a stage of HVAC operation ahead of occupancy, and then some additional flush-out with significantly higher than normal outdoor (dilution) air being delivered during initial occupancy. Such flush outs can have negative economic consequences resulting from delayed occupancy and due to the energy costs associated with heating or cooling the additional outdoor air being delivered during the flush out.

However, if a range of specific parameters are measured below prescribed levels, the flush out period may be reduced or eliminated, while providing added assurance that occupants will not be subjected to elevated pollutants associated with new building materials or with construction; pollutants that may detrimentally impact the productivity and long-term health occupants.

Professional Building Inspectors quickly and efficiently performs Indoor Air Quality Testing to determine if the specific parameters are below prescribed levels so you can reduce or eliminate the flush out period and proceed to building occupancy. We serve Long Island, Westchester, NYC, Queens, Brooklyn, Staten Island, Bronx, and parts of NJ and CT.

Parameters to be measured (per LEED Reference Guide for Green Building Design and Construction, 2009 Edition):

Parameter Target
Total Volatile Organic Compounds (TVOCs)<500 µg/m3
Carbon Monoxide (CO)<9 ppm, and no more than >2ppm above outdoor levels
Particulates (PM10<50 µg/m3
Formaldehyde (HCHO<27 ppb
4-Phenylcyclohexene (4-PCH)<6.5 µg/m3 (4-PCH measurement is only required for spaces where carpeting or fabrics with styrene butadiene rubber (SBR) backing has been installed).

Measurements must be taken over a minimum period of 4 hours.