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36 records – page 1 of 4.

An Overview of CLT Research and Implementation in North America

https://research.thinkwood.com/en/permalink/catalogue759
Year of Publication
2016
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Shiling Pei
Douglas Rammer
Marjan Popovski
Tom Williamson
Philip Line
John van de Lindt
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
Market and Adoption
Keywords
Market
North America
Building Development
Research
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria
Abstract
Although not yet seen as common practice, building with cross laminated timber (CLT) is gaining momentum in North America. Behind the scenes of the widely publicized project initiatives such as the Wood Innovation Design Centre Building in Canada and the...
Online Access
Free
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Chapter 1: Introduction to Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue807
Year of Publication
2011
Topic
General Information
Material
CLT (Cross-Laminated Timber)
Application
General Application
Organization
FPInnovations
Year of Publication
2011
Country of Publication
Canada
Format
Book Section
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
General Information
Keywords
North America
Codes
Construction
Language
English
Research Status
Complete
Series
CLT Handbook - Canadian Edition
Notes
Report is currently not available due to the redevelopment of FPInnovations' publications website.
Abstract
Cross-laminated timber (CLT), an innovative engineered wood product developed in Europe, has been gaining increasing popularity in residential and non-residential applications in several countries. Numerous impressive buildings built around the world...
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Free
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Chapter 5: Connections in Cross-Laminated Timber Buildings

https://research.thinkwood.com/en/permalink/catalogue811
Year of Publication
2011
Topic
Connections
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Mohammad Mohammad
Williams Munoz
Organization
FPInnovations
Year of Publication
2011
Country of Publication
Canada
Format
Book Section
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
Connections
Keywords
North America
Language
English
Research Status
Complete
Series
CLT Handbook - Canadian Edition
Notes
Report is currently not available due to the redevelopment of FPInnovations' publications website.
Abstract
The light weight of cross-laminated timber (CLT) products combined with the high level of prefabrication involved, in addition to the need to provide wood-based alternative products and systems to steel and concrete, have significantly contributed to the...
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Free
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Chapter 5: Connections in Cross-Laminated Timber Buildings

https://research.thinkwood.com/en/permalink/catalogue824
Year of Publication
2013
Topic
Connections
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Mohammad Mohammad
Bradford Douglas
Douglas Rammer
Steven Pryor
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
Connections
Market and Adoption
Keywords
Code Acceptance
Fasteners
International Building Code
North America
Language
English
Research Status
Complete
Series
CLT Handbook - US Edition
ISBN
978-0-86488-553-1
ISSN
1925-0495
Abstract
This Chapter focuses on a few fastening systems that reflect present-day practices, some being conventional, while others are proprietary. Given the recent introduction of CLT into the construction market, it is expected that new connection types will be developed over time. Issues associated with connection design specific to CLT assemblies are presented. The European design approach is also presented and the applicability of the National Design Specification (NDS) for Wood Construction design provisions for traditional fasteners in CLT such as bolts, dowels, nails, and wood screws are reviewed and design guidelines are provided. Several design examples are also given at the end to demonstrate how connections in CLT can be established using current NDS design provisions.
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Chapter 9: Acoustic Performance of Cross-Laminated Timber Assemblies

https://research.thinkwood.com/en/permalink/catalogue815
Year of Publication
2011
Topic
Acoustics and Vibration
Material
CLT (Cross-Laminated Timber)
Application
Walls
Floors
Author
Sylvain Gagnon
Jean-Luc Kouyoumji
Organization
FPInnovations
Year of Publication
2011
Country of Publication
Canada
Format
Book Section
Material
CLT (Cross-Laminated Timber)
Application
Walls
Floors
Topic
Acoustics and Vibration
Keywords
North America
Residential
Sound Transmission Class
Impact Sound Insulation Class
Acoustic Performance
Multi-Residential
Non-Residential
US
Language
English
Research Status
Complete
Series
CLT Handbook - Canadian Edition
Notes
Report is currently not available due to the redevelopment of FPInnovations' publications website.
Abstract
Adequate levels of noise/sound control in multi-family buildings are mandatory requirements of building codes in Canada, the United States, Europe, and most developed Asian countries. In many jurisdictions, these requirements are as strictly enforced as ...
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Free
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Chapter 10: Building Enclosure Design of Cross-Laminated Timber Construction

https://research.thinkwood.com/en/permalink/catalogue816
Year of Publication
2011
Topic
Serviceability
Moisture
Material
CLT (Cross-Laminated Timber)
Application
Walls
Author
Graham Finch
Dave Ricketts
Jieying Wang
Constance Thivierge
Paul Morris
Organization
FPInnovations
Year of Publication
2011
Country of Publication
Canada
Format
Book Section
Material
CLT (Cross-Laminated Timber)
Application
Walls
Topic
Serviceability
Moisture
Keywords
Airflow
Climate
Heat
Insulation
Moisture
North America
Language
English
Research Status
Complete
Series
CLT Handbook - Canadian Edition
Notes
Report is currently not available due to the redevelopment of FPInnovations' publications website.
Abstract
Cross-laminated timber (CLT) has become popular in Europe for the prefabricated construction of wall, roof and flooring elements. The use of CLT in North America is gaining interest in both the construction and wood industries. Several North American man...
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Free
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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.
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Chapter 12: Lifting and Handling of CLT Elements

https://research.thinkwood.com/en/permalink/catalogue818
Year of Publication
2011
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Sylvain Gagnon
Organization
FPInnovations
Year of Publication
2011
Country of Publication
Canada
Format
Book Section
Material
CLT (Cross-Laminated Timber)
Application
General Application
Keywords
North America
Construction
Lifting Systems
Prefabrication
Transportation
Language
English
Research Status
Complete
Series
CLT Handbook - Canadian Edition
Notes
Report is currently not available due to the redevelopment of FPInnovations' publications website.
Abstract
Cross-laminated timber (CLT) construction is a relatively new process. There is therefore very little specific technical documentation for the erection of heavy structures designed and built with CLT panels. Current CLT manufacturers propose lifting syst...
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Free
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CLT Research: Available and Accessible to North American Building Designers

https://research.thinkwood.com/en/permalink/catalogue704
Year of Publication
2016
Topic
Market and Adoption
Material
CLT (Cross-Laminated Timber)
Application
General Application
Author
Lisa Podesto
Scott Breneman
Publisher
Forest Products Society
Year of Publication
2016
Country of Publication
United States
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
General Application
Topic
Market and Adoption
Keywords
North America
Research
Language
English
Research Status
Complete
Series
Wood Design Focus
Online Access
Free
Resource Link
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A Comparative Cradle-To-Gate Life Cycle Assessment of Mid-Rise Office Building Construction Alternatives: Laminated Timber or Reinforced Concrete

https://research.thinkwood.com/en/permalink/catalogue52
Year of Publication
2012
Topic
Energy Performance
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
General Application
Author
Adam Robertson
Frank Lam
Raymond Cole
Publisher
MDPI
Year of Publication
2012
Country of Publication
Switzerland
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
General Application
Topic
Energy Performance
Environmental Impact
Keywords
Concrete
Embodied Carbon
Life-Cycle Assessment
Mid-Rise
National Building Code of Canada
NBCC
North America
Office Buildings
Language
English
Research Status
Complete
Series
Buildings
ISSN
2075-5309
Abstract
The objective of this project was to quantify and compare the environmental impacts associated with alternative designs for a typical North American mid-rise office building. Two scenarios were considered; a traditional cast-in-place, reinforced concrete frame and a laminated timber hybrid design, which utilized engineered wood products (cross-laminated timber (CLT) and glulam). The boundary of the quantitative analysis was cradle-to-construction site gate and encompassed the structural support system and the building enclosure. Floor plans, elevations, material quantities, and structural loads associated with a five-storey concrete-framed building design were obtained from issued-for-construction drawings. A functionally equivalent, laminated timber hybrid design was conceived, based on Canadian Building Code requirements. Design values for locally produced CLT panels were established from in-house material testing. Primary data collected from a pilot-scale manufacturing facility was used to develop the life cycle inventory for CLT, whereas secondary sources were referenced for other construction materials. The TRACI characterization methodology was employed to translate inventory flows into impact indicators. The results indicated that the laminated timber building design offered a lower environmental impact in 10 of 11 assessment categories. The cradle-to-gate process energy was found to be nearly identical in both design scenarios (3.5 GJ/m2), whereas the cumulative embodied energy (feedstock plus process) of construction materials was estimated to be 8.2 and 4.6 GJ/m2 for the timber and concrete designs, respectively; which indicated an increased availability of readily accessible potential energy stored within the building materials of the timber alternative.
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36 records – page 1 of 4.