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Operational Performance of Cross Laminated Timber: Brock Commons Tallwood House

https://research.thinkwood.com/en/permalink/catalogue2679
Year of Publication
2020
Topic
Moisture
Serviceability
Material
CLT (Cross-Laminated Timber)
Application
Columns
Walls
Organization
UBC Sustainability Initiative
Year of Publication
2020
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Application
Columns
Walls
Topic
Moisture
Serviceability
Keywords
Moisture Content
Moisture Performance
Monitoring
Vertical Movement
Panels
Language
English
Research Status
Complete
Summary
The Tallwood House project was intended to advance the design and manufacture of mass timber products in Canada and demonstrate that mass timber is a viable structural option for mid-rise and high-rise buildings. The use of mass timber and engineered wood products in high-rise construction is becoming more common around the world leading to a growing interest in the performance of mass timber over time. This report describes the performance of the mass timber structure in Tallwood House, between September 2017 and August 2019, based on measurements of the moisture content in the prefabricated CLT floor panels and the displacement of the vertical structural system. It is intended to initiate discussions on the performance of mass timber structure elements during building occupancy and lead to further research that can explore the influential factors.
Online Access
Free
Resource Link
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Treatability of Cross Laminated Timber With a Low Moisture Uptake Surface-Applied Penetrating Process for Applying Termiticides

https://research.thinkwood.com/en/permalink/catalogue2642
Year of Publication
2014
Topic
Serviceability
Material
CLT (Cross-Laminated Timber)
Author
Stirling, Rod
Morris, Paul
Organization
FPInnovations
Year of Publication
2014
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Topic
Serviceability
Keywords
Termites
Preservative Treatment
Panels
Hem-Fir
Language
English
Research Status
Complete
Summary
Cross-laminated timber (CLT) may require preservative treatment in markets with severe termite hazards. Given the size of CLT panels, conventional pressure treatment would not be feasible. We therefore assessed the treatability of CLT panels with an alternative low moisture uptake surface-applied penetrating process for applying termiticides. Hem-fir panels were selected for the initial tests on the grounds that western hemlock and amabilis fir are relatively treatable. Nine test panels were dip treated and stored for 7, 14, or 21 day activation periods. Borate retention ranged from 1.2 to 6.5 kg/m3 and penetration ranged from 3 to 9 mm. Longer activation periods did not result in improved penetration. Greater penetration would likely be needed to meet performance-based standards.
Online Access
Free
Resource Link
Less detail