1.6 : Embodied Energy of Building Assemblies
| 1.6.6 |
Embodied Energy
of Commercial Interior Wall Assemblies in the U.S. |
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Embodied Energy |
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CO2 Equivalent |
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| Interior Wall
Type (2) |
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(MMBtu/SF) (1) |
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Emissions (lbs/SF) |
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| 2x4 wood stud
(16" OC) + gypsum board (3) |
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0.03 |
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2.84 |
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| 2x4 wood stud
(24" OC) + gypsum board (3) |
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0.03 |
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2.78 |
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| 2x4 wood stud
(24" OC) + 2 gypsum boards (4) |
0.04 |
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4.45 |
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| Steel stud
(16" OC) + gypsum board (4) |
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0.04 |
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3.99 |
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| Steel stud
(24" OC) + gypsum board (4) |
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0.04 |
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3.64 |
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| Steel stud
(24" OC) + 2 gypsum boards |
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0.05 |
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5.31 |
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| 6"
Concrete block + gypsum board |
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0.21 |
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34.02 |
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| 6"
Concrete block |
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0.19 |
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32.34 |
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| Clay brick
(4") unpainted |
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0.05 |
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6.97 |
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| Note(s): |
Assumptions:
Values are general estimations for the U.S. 60 year building lifetime. Low
rise building. 1) Embodied Energy: Energy use includes extraction,
processing, transportation, construction, and disposal of each material. 2)
All interior walls include two coats of latex paint unless noted otherwise.
3) Rounding obscures difference in embodied energy figures: wood stud with
16" OC is 3.6% higher than wood stud with 24" OC. 4) Rounding
obscures difference in embodied energy figure: wood stud wall is 19.9% higher
than steel stud wall with 16" OC and 27.6% higher than steel stud wall
with 24" OC. |
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