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Chapter 11: Environmental Performance of Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue830
Year of Publication
2013
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Jennifer O'Connor
Lisa Podesto
Alpha Barry
Blane Grann
Organization
FPInnovations
Binational Softwood Lumber Council
Year of Publication
2013
Country of Publication
Canada
United States
Format
Book Section
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
Environmental Impact
Keywords
Life-Cycle Assessment
Mid-Rise
Volatile Organic Compounds
Environmental Footprint
North America
Sustainable Forest Practices
Indoor Air Quality
Language
English
Research Status
Complete
Series
CLT Handbook - US Edition
Abstract
The environmental footprint of CLT is frequently discussed as potentially beneficial when compared to functionally equivalent non-wood alternatives, particularly concrete systems. In this Chapter, the role of CLT in sustainable design is addressed. The embodied environmental impacts of CLT in a mid-rise building are discussed, with preliminary results from a comprehensive life cycle assessment (LCA) study. We also discuss other aspects of CLT's environmental profile, including impact on the forest resource and impact on indoor air quality from CLT emissions. The ability of the North American forest to sustainably support a CLT industry is an important consideration and is assessed from several angles, including a companion discussion regarding efficient use of material. Market projections and forest growth-removal are applied to reach a clear conclusion that CLT will not create a challenge to the sustainable forest practices currently in place in North America and safeguarded through legislation and/or third party certification programs. To assess potential impact on indoor air quality, CLT products with different thicknesses and glue lines were tested for their volative organic compounds (VOCs) including formaldehyde and acetaldehyde emissions. CLT was found to be in compliance with European labeling programs as well as the most stringent CARB limits for formaldehyde emissions. Testing was done on Canadian species, as there was no U.S. supplier of CLT at the time of this writing; because VOC emissions are affected by species, this work should be repeated from products made from different species.
Online Access
Free
Resource Link
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A Comparative Life Cycle Assessment of Two Multistory Residential Buildings: Cross-Laminated Timber Vs. Concrete Slab and Column with Light Gauge Steel Walls

https://research.thinkwood.com/en/permalink/catalogue339
Year of Publication
2013
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Blane Grann
Organization
FPInnovations
Year of Publication
2013
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Environmental Impact
Keywords
Concrete
Life-Cycle Assessment
Mid-Rise
Steel
Canada
Language
English
Research Status
Complete
Abstract
This study provides a comparative life cycle assessment (LCA) of a 4060 m2, 4-storey cross laminated timber (CLT) apartment building located in Quebec City, Canada and an equivalently designed building consisting of reinforced concrete slabs and columns with light gauge steel studded walls (CSSW)...
Online Access
Payment Required
Resource Link
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Wood Innovation and Design Centre Whole Building Life Cycle Assessment

https://research.thinkwood.com/en/permalink/catalogue236
Year of Publication
2014
Topic
Environmental Impact
Energy Performance
Material
CLT (Cross-Laminated Timber)
LVL (Laminated Veneer Lumber)
Application
Wood Building Systems
Author
Blane Grann
Organization
FPInnovations
Year of Publication
2014
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
LVL (Laminated Veneer Lumber)
Application
Wood Building Systems
Topic
Environmental Impact
Energy Performance
Keywords
Canada
Life-Cycle Assessment
Multi-Storey
Language
English
Research Status
Complete
Abstract
This document provides supporting information for LEED accreditation of the Wood Innovation and Design Centre (WIDC) in Prince George British Columbia. In particular, this document supports materials and resources pilot credit 63 - whole building life cycle...
Online Access
Free
Resource Link
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