1.6 : Embodied Energy of Building Assemblies




1.6.8 Embodied Energy of Column and Beam Assemblies in the U.S.
Assumes Non-Load-Bearing Exterior Wall: Embodied Energy CO2 Equivalent
(MMBtu SF) (1) Emissions (lbs/SF)
Column Type Beam Type
Concrete Concrete 0.101 17.57
Concrete Steel I-beam 0.091 11.24
Hollow structural steel Glulam 0.022 2.07
Hollow structural steel Laminated veneer lumber 0.019 1.81
Glulam Glulam 0.019 1.68
Glulam Laminated veneer lumber 0.016 1.39
Steel I-beam Steel I-beam 0.054 5.51
Steel I-beam Laminated veneer lumber 0.018 1.61
Built-up softwood Glulam 0.019 0.62
Built-up softwood Laminated veneer lumber 0.016 0.49
Assumes Load-Bearing Exterior Wall:
Column Type Beam Type
Concrete Concrete 0.076 13.49
Concrete Steel I-beam 0.069 8.31
Hollow structural steel Glulam 0.017 1.63
Hollow structural steel Laminated veneer lumber 0.015 1.41
Glulam Glulam 0.015 1.34
Glulam Laminated veneer lumber 0.013 1.15
Steel I-beam Steel I-beam 0.044 4.48
Steel I-beam Laminated veneer lumber 0.014 1.28
Built-up softwood Glulam 0.015 1.34
Built-up softwood Laminated veneer lumber 0.013 1.12
Note(s): Assumptions: Values are general estimations for the U.S. Low rise building. 60 year building lifetime. Bay size: 30 by 30 feet. Column Height: 10 feet. 1) Embodied Energy: Energy use includes extraction, processing, transportation, construction, and disposal of each material.









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