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Ongoing Field Evaluation of Douglas-fir Cross-Laminated Timber in a Ground Proximity Protected Test in Mississippi

https://research.thinkwood.com/en/permalink/catalogue1958
Year of Publication
2018
Topic
Serviceability
Material
CLT (Cross-Laminated Timber)
Author
Mankowski, Mark
Shelton, Thomas
Kirker, Grant
Morrell, Jeffrey
Year of Publication
2018
Country of Publication
United States
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Serviceability
Keywords
Douglas-Fir
Treated Wood
Termites
Language
English
Conference
American Wood Protection Association
Research Status
Complete
Online Access
Free
Resource Link
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Expanding Mass Timber and CLT Markets for High Termite Risk Applications

https://research.thinkwood.com/en/permalink/catalogue2790
Topic
Serviceability
Moisture
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Organization
TallWood Design Institute
Oregon State University
Country of Publication
United States
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Serviceability
Moisture
Keywords
Termites
Moisture
Treated Wood
Field Testing
Hawaii
Research Status
In Progress
Notes
Project contacts are Gerald Presley, Oregon State University, and Scott Noble, Kaiser+Path
Summary
The primary goal of this project is to enhance the durability of mass timber assemblies in high-moisture, high-termite risk regions. Only a few U.S. jurisdictions allow mass timber use by code adoption. Hawaii requires that all structural wood be treated to resist insects. Current topical or pressure treatments are allowed, but it is unclear how these treatments will perform in mass timber elements. Assembled cross-laminated timber (CLT) panels are too large to fit in pressure vessels. We will test the performance of individually treated wood members (lamella), assembled into CLT panels for compliance to structural requirements as well as resistance to termite attack in field trials. The resulting data will identify the most effective treatment options to protect CLT and other mass timber assemblies for use in Hawaii and similar regions with high termite exposure. The research implications will contribute to educating architects, engineers, builders and developers on modern timber construction in new regions.
Resource Link
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