Section 3: Synergistic Credits
Summary of First Cost Impacts
Office Building: Credit SN-4
Individual Credit Costs
Combines:
Credit MR-7
Credit MR-7................................................. ,332
Certified Wood
Credit EQ-4.4.............................................. ,429
Credit ID-1.4B .......................................... 8,460
Credit EQ-4.4
Low-Emitting Materials: Composite Wood
Synergistic Credit SN-4
Credit ID-1.4.B
Total Credit Cost ...................................... 0,155
Exceed Certified Hardwood Trim &
Cost Impact ($/GSF)...........................
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.49/GSFMillwork Criteria (75%)
Cost Impact (%), Min. Facade.....................0.38%
Cost Impact (%), Full Facade......................0.37%
Description
Applicable Scenarios
Similar to credit SN-3, credit SN-4 acknowledges
the synergies as well as the challenges of pursuing
Credit SN-4 is used in the Office Building
the LEED certified wood and prohibited urea-
scenarios 3B/Minimal Facade Renovation (Silver),
formaldehyde credits simultaneously. The wood
4B/Full Facade Renovation (Silver), 5B/Minimal
doors in the Office Building are specifically
Facade Renovation (Gold), and 6B/Full Facade
affected by these credits (see description under
Renovation (Gold).
credit SN-3).
Three LEED credits are achieved with item SN-4.
Basis for Cost Assumption
In order to achieve the 75 percent certified wood
criteria of credit MR-7, the majority of the solid
core, non-rated wood doors throughout the
building are targeted, in addition to solid wood
base. The doors are assumed to be solid stave-core,
FSC-certified doors with an additional premium
paid to use non-urea formaldehyde crossbanding
layers. Additional wood doors (that are not FSC-
certified) are specified with formaldehyde-free
cores and crossbanding layers (see credit EQ-4.4).
All casework substrates are assumed to be a wood-
based mdf that is not certified, but is free of urea
formaldehyde binders.
Table SN4O-1 lists all of the wood items required
to achieve the credits.
GSA LEED COST STUDY
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