Skip header and navigation

2 records – page 1 of 1.

Mass Timber Building Life Cycle Assessment Methodology for the U.S. Regional Case Studies

https://research.thinkwood.com/en/permalink/catalogue2887
Year of Publication
2021
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Gu, Hongmei
Liang, Shaobo
Pierobon, Francesca
Puettmann, Maureen
Ganguly, Indroneil
Chen, Cindy
Pasternack, Rachel
Wishnie, Mark
Jones, Susan
Maples, Ian
Organization
Forest Products Laboratory
University of Washington
Population Research Center
Editor
Jasinskas, Algirdas
Publisher
MDPI
Year of Publication
2021
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Environmental Impact
Keywords
Life-Cycle Assessment
Mass Timber
Whole-building LCA Methodology
Research Status
Complete
Series
Sustainability
Summary
The building industry currently consumes over a third of energy produced and emits 39% of greenhouse gases globally produced by human activities. The manufacturing of building materials and the construction of buildings make up 11% of those emissions within the sector. Whole-building life-cycle assessment is a holistic and scientific tool to assess multiple environmental impacts with internationally accepted inventory databases. A comparison of the building life-cycle assessment results would help to select materials and designs to reduce total environmental impacts at the early planning stage for architects and developers, and to revise the building code to improve environmental performance. The Nature Conservancy convened a group of researchers and policymakers from governments and non-profit organizations with expertise across wood product life-cycle assessment, forest carbon, and forest products market analysis to address emissions and energy consumption associated with mass timber building solutions. The study disclosed a series of detailed, comparative life-cycle assessments of pairs of buildings using both mass timber and conventional materials. The methodologies used in this study are clearly laid out in this paper for transparency and accountability. A plethora of data exists on the favorable environmental performance of wood as a building material and energy source, and many opportunities appear for research to improve on current practices.
Online Access
Free
Resource Link
Less detail

What Is the Impact of Mass Timber Utilization on Climate and Forests?

https://research.thinkwood.com/en/permalink/catalogue2921
Year of Publication
2022
Topic
Environmental Impact
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Pasternack, Rachel
Wishnie, Mark
Clarke, Caitlin
Wang, Yangyang
Belair, Ethan
Marshall, Steve
Gu, Hongmei
Nepal, Prakash
NDolezal, Franz
Lomax, Guy
Johnston, Craig
Felmer, Gabriel
Morales-Vera, Rodrigo
Puettmann, Maureen
Huevel, Robyn
Organization
USDA Forest Service Forest Products Laboratory
University of Exeter
Universidad de Chile
Universidad Católica del Maule
Editor
Ganguly, Indroneil
Publisher
MDPI
Year of Publication
2022
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Environmental Impact
Keywords
Life-Cycle Assessment
Climate Change
Embodied Carbon
Carbon Storage
Research Status
Complete
Series
Sustainability
Summary
As the need to address climate change grows more urgent, policymakers, businesses, and others are seeking innovative approaches to remove carbon dioxide emissions from the atmosphere and decarbonize hard-to-abate sectors. Forests can play a role in reducing atmospheric carbon. However, there is disagreement over whether forests are most effective in reducing carbon emissions when left alone versus managed for sustainable harvesting and wood product production. Cross-laminated timber is at the forefront of the mass timber movement, which is enabling designers, engineers, and other stakeholders to build taller wood buildings. Several recent studies have shown that substituting mass timber for steel and concrete in mid-rise buildings can reduce the emissions associated with manufacturing, transporting, and installing building materials by 13%-26.5%. However, the prospect of increased utilization of wood products as a climate solution also raises questions about the impact of increased demand for wood on forest carbon stocks, on forest condition, and on the provision of the many other critical social and environmental benefits that healthy forests can provide. A holistic assessment of the total climate impact of forest product demand across product substitution, carbon storage in materials, current and future forest carbon stock, and forest area and condition is challenging, but it is important to understand the impact of increased mass timber utilization on forests and climate, and therefore also on which safeguards might be necessary to ensure positive outcomes. To thus assess the potential impacts, both positive and negative, of greater mass timber utilization on forests ecosystems and emissions associated with the built environment, The Nature Conservancy (TNC) initiated a global mass timber impact assessment (GMTIA), a five-part, highly collaborative research program focused on understanding the potential benefits and risks of increased demand for mass timber products on forests and identifying appropriate safeguards to ensure positive outcomes.
Online Access
Free
Resource Link
Less detail