Section 2: Individual LEED Credit Reviews
LEED Credit EQ-3.1:
Practical Applications
Construction IAQ
This credit requires the general contractor or
construction manager to develop and submit a
Management Plan
Construction IAQ Management Plan for the
During Construction
project. Upon approval by the client and/or design
team, all contractors are responsible for
implementing the provisions of the plan
throughout the construction process. SMACNA's
Intent
IAQ Guideline for Occupied Buildings under
Construction covers control measures in the
Prevent indoor air quality problems resulting
following five areas:
from the construction/renovation process in
order to help sustain the comfort and well-being
HVAC protection
of construction workers and building occupants.
Source Control
Pathway Interruption
Requirement
Housekeeping
Develop and implement an Indoor Air Quality
Scheduling
(IAQ) Management Plan for the construction
and pre-occupancy phases of the building as
Typical measures that would be implemented
follows:
include:
During construction meet or exceed the
Sealing off construction areas from occupied
recommended Design Approaches of the
spaces (including HVAC system isolation);
Sheet Metal and Air Conditioning National
Covering/sealing of ductwork openings -
Contractors Association (SMACNA) IAQ
when stored on-site, and when installed;
Guideline for Occupied Buildings under
Sequencing ductwork installations to avoid
Construction, 1995, Chapter 3.
exposure to dust-producing activities;
Protect stored on-site or installed
Providing local exhaust for any construction
absorptive materials from moisture damage.
activities that generate combustion fumes or
If air handlers must be used during
high levels of air pollutants;
construction, filtration media with a
Sequencing finish material installations to
Minimum Efficiency Reporting Value of 8
avoid contamination of absorbent materials
must be used at each return air grill, as
by highly-emitting materials; and
determined by ASHRAE 52.2-1999.
Using low-emitting cleaning products
Replace all filtration media immediately
throughout the construction process.
prior to occupancy. Filtration media shall
have a Minimum Efficiency Reporting
In addition to the SMACNA requirements, the
Value (MERV) of 13, as determined by
filtration and material storage provisions outlined
ASHRAE 52.2-1999 for media installed at
in the credit must be included in the scope of the
the end of construction.
IAQ plan.
(1 point)
Basis for Cost Assumption
In the Courthouse model, the cost to develop an
Cost Impact = 3
IAQ Management Plan and implement the
SMACNA requirements is estimated based on two
different assumptions. In the "low cost" scenarios,
1
2
3
4
5
the SMACNA guidelines are already considered
part of the construction teams' practices, and no
GSA
No
Low
Moderate
High
Mandate
premium,
premium
premium
premium
additional labor cost is required. In the "high cost"
(no cost)
psble svgs
(<50K)
(50-150K)
(>150K)
GSA LEED COST STUDY
136
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