Page 280 - The Engineering Guide to LEED-New Construction Sustainable Construction for Engineers

LEED Indoor Envir onmental Quality 243

• IEQ Credit 6.2 (IEQc6.2): Controllability of Systems—Thermal Comfort (previously
referred to as Controllability of Systems—Non-Perimeter Spaces in LEED-NC 2.1)
(EB)
• IEQ Credit 7.1 (IEQc7.1): Thermal Comfort—Design (previously referred to as
Thermal Comfort—Compliance with ASHARE 55-1992 in LEED-NC 2.1) (EB)
• IEQ Credit 7.2 (IEQc7.2): Thermal Comfort—Verification (previously referred to
as Thermal Comfort—Permanent Monitoring System in LEED-NC 2.1) (EB)
• IEQ Credit 8.1 (IEQc8.1): Daylighting and Views—Daylighting (EB)
• IEQ Credit 8.2 (IEQc8.2): Daylighting and Views—Views (EB)
LEED-NC 2.2 and 2009 provide tables that summarize some of these prerequisite
and credit characteristics, including the main phase of the project for submittal document
preparation (Design or Construction). Even though the entire LEED process encompasses
all phases of a project, the prerequisites or credits that are noted as Construction
Submittal credits may have major actions going on through the construction phase
which, unless documented through that time, may not be verifiable from
preconstruction documents or the built project. Sometimes these credits have activities
associated with them that cannot or need not be performed until or subsequent to the
construction phase. All the credits in both the Construction IAQ Management Plan
and the Low-Emitting Materials subcategories have been noted in the construction
submittal column, because the credits of the former cover construction phase activities
and the credits of the latter pertain to materials mentioned that are frequently chosen
and used during the construction phase. This designation is noted in Table 6.0.1.
Six of the credit subcategories listed in Table 6.0.1 have the icon EB noted after their
title (Outdoor Air Delivery Monitoring, Controllability of System—Thermal Comfort,
Thermal Comfort—Design, Thermal Comfort—Verification, Daylighting and Views—
Daylight and Daylighting and Views—Views). This icon is a tool to help those who
wish to proceed with the continuing LEED-EB certification (Existing Building) after
certification of LEED-NC (New Construction or Major Renovation) is obtained. Those
credits noted with this icon are usually more cost-effective to implement during the
construction of the building than later during its operation. They are also shown in
Table 6.0.1. There are many prerequisites or credits which might have variations
applicable to the design or implementation of the project related to regional conditions
in the United States. All the prerequisites and credits for which regional variations
might be applicable are noted in the LEED 2009 Reference Guide and are so listed in
Table 6.0.1 for the Indoor Environmental Quality category.
There are EP points under the Innovation and Design category available that relate
to several items in other categories. These are available for exceeding each of the
respective credit criteria to a minimum level as noted in the respective credit descriptions.
EP points are only available for the Daylighting and Views subcategory of the EQ
credits. This is noted in Table 6.0.0. Note that only a maximum total of four EP points is
available in total for a project in LEED 2.2 and a maximum of three in LEED 2009 and
they may be from any of the noted EP options in any of the SS, WE, EA, MR, or IEQ
LEED categories (see Chap. 7).
There are many important parameters used to attain and verify the credits. Some
are important for multiple credits, such as the determination of the site boundary, which
was previously discussed as being an important parameter in many of the credits in the
other categories, but is not really directly applicable to any of the IEQ credits. One