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      ENVIRONMENTAL IMPACT ASSESSMENT OF LIGHT-FRAME AND TIMBER FRAME STRUCTURES

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          Abstract

          The objective of this study was to analyze the environmental performance of different wood structural assemblies for residential buildings. Two structural systems (a traditional timber frame and a light-frame) were compared together with alternate material options for each system. Environmental impacts were determined using the Athena Impact Estimator for Buildings software. Design alterations for generalization were made to an existing timber frame (TF) structure used as the basis of this analysis, and an equivalent light-frame (LF) structure was designed based on the International Residential Code (IRC). Environmental impacts observed include total energy consumption, fossil fuel consumption, global warming potential (GWP), and wood fiber use. All analyses were considered cradle-to-gate, including the manufacturing and construction life-cycle stages. Results show how GWP is linked to both fossil fuel consumption and wood fiber use, and how ultimate environmental impact is driven by energy source. Environmental impacts of structures are driven by material choice, and levels of carbon stored in structural wood serve to decrease GWP. Of the structural assemblies analyzed, the most traditional TF structure outperformed all other options in almost every measure.

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          Most cited references 14

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          “Cradle-to-Gate Life-Cycle Inventory of US Wood Products Production: CORRIM Phase I and Phase II Products.”

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            “A Reassessment of Carbon Content in Wood: Variation Within and Between 41 North American Species.”

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              “Prospects for carbon-neutral housing: the influence of greater wood use on the carbon footprint of a single-family residence.”

               J. SALAZAR,  J Meil,  J Salazar (2009)
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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Spring 2014
                : 9
                : 2
                : 102-123
                Author notes

                1Structural Designer, KL&A Structural Engineers and Builders, Carbondale, CO.

                2Professor, Dept. of Wood Sci. & Eng., Oregon State Univ., Corvallis, OR-97331; email: rakesh.gupta@ 123456oregonstate.edu (corresponding author)

                3Associate Professor, School of Civil and Construction Engineering, Oregon State University, Corvallis, OR 97331.

                4PhD, WoodLife Environmental Consultants, LLC, Corvallis, OR 97330.

                Article
                jgb.9.2.102
                10.3992/1943-4618-9.2.102
                ©2014 by College Publishing. All rights reserved.

                Volumes 1-10 of JOGB are open access and do not require permission for use, though proper citation should be given. To view the licenses, visit https://creativecommons.org/licenses/by-nc/4.0/

                Page count
                Pages: 22
                Product
                Categories
                RESEARCH ARTICLES

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