Section 2: Individual LEED Credit Reviews
LEED Credit EQ-3.2:
Practical Applications
Construction IAQ
For most GSA projects, it is assumed that a two
week building flush-out will be the means to
Management Plan
achieve this credit. Project teams will need to
Before Occupancy
include the flush-out period as part of the overall
construction schedule, and determine what limited
commissioning or set-up activities can occur in the
building during the two week period. A significant
Intent
consideration for some projects will be the
Prevent indoor air quality problems resulting
scheduling of furniture installations (e.g.,
from construction/renovation process, in order
workstations)--the USGBC has ruled that
help sustain the comfort and well-being of
absorbent furnishings cannot be moved into a
construction workers and building occupants.
building until the flush-out has been completed.
Similarly, painting touch-ups and other punch-list
Requirement
items that involve VOC-emitting materials cannot
be performed during the flush-out period.
Develop and implement an Indoor Air Quality
(IAQ) Management Plan for the pre-occupancy
Commissioning activities can occur during the
phase as follows:
flush-out; however, these would typically be limited
by the fact that the HVAC systems are operating in
After construction ends and prior to
a fixed flush-out mode. Commissioning of lighting
occupancy conduct a minimum two-week
systems, the building envelope, or other non-
building flush-out with new Minimum
HVAC systems (e.g., elevators, fire safety) is
Efficiency Reporting Value (MERV) 13
possible.
filtration media at 100% outside air. After
The referenced EPA Baseline IAQ testing is not
the flush-out, replace the filtration media
assumed to be likely for most GSA projects; costs
with new MERV 13 filtration media, except
have not been estimated for this option.
the filters solely processing outside air.
OR
Basis for Cost Assumption
Conduct a baseline indoor air quality testing
In both the Courthouse and Office Building
procedure consistent with the United States
models, constant volume dedicated ventilation
Environmental Protection Agency's current
units are provided (per P100 requirements) on each
Protocol for Environmental Requirements, Baseline
floor, which provide 100 percent outside air. The
IAQ and Materials, for the Research Triangle
flush-outs are therefore implemented by running
Park Campus, Section 01445.
these dedicated ventilation units during the
(1 point)
designated two week period. It is also assumed that
fan powered VAV boxes at the perimeter zones
will operate.
Cost Impact = 3
Prior to the flush-out, filter replacements are
assumed for all air handlers and for all fan-powered
VAV boxes. As noted under credit EQ-3.1
1
2
3
4
5
(Construction IAQ Management Plan, During
Construction), these filter replacements are
GSA
No
Low
Moderate
High
Standard
premium,
premium
premium
premium
considered standard practices in GSA projects.
(50-150K)
(>150K)
(no cost)
psble svgs
(<50K)
Since the dedicated ventilation units process only
outside air, it is not necessary to replace their filters
after the flush-out. It is assumed, however, that the
filters in the fan-powered VAV boxes will need to
be replaced after the flush-out in order to meet the
GSA LEED COST STUDY
138
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