Two tree species native to the Northeast have been found to be structurally sound for use in cross-laminated timber (CLT) products.
Eastern white pine and eastern hemlock passed strength testing by a University of Massachusetts Amherst timber engineer. The findings, published in the Journal of Materials in Civil Engineering, suggest that these species could support local markets for CLT.
Researchers made composite building panels by gluing together wooden boards from hemlock and pine trees, and then broke them in a strength-testing machine. The researchers analyzed the results, comparing them to engineering requirements, and found that both tree species met building standards, with eastern hemlock outperforming pine.
Salvaging wood from eastern hemlock is a key forest-management priority because the trees are under attack by an insect, the hemlock wooly adelgid. The insect doesn’t harm the wood, but it kills the tree that then becomes hazardous fuel for forest fires.
Related Stories
Codes and Standards | Sep 19, 2017
Benchmarking regulations prompt jump in green certified properties
2016 saw a slight rise in total certified U.S. green office space.
Codes and Standards | Sep 18, 2017
Changes likely to come to federal wetlands regulations
However, states may step up regulations as feds relax them.
Codes and Standards | Sep 14, 2017
Gentrification means a new mindset for city planners
Rising rents elicit reexamination of zoning principles.
Codes and Standards | Sep 13, 2017
OSHA issues extension for compliance with crane operator certification requirements
Comments on proposed rule sought through Sept. 29.
Codes and Standards | Sep 12, 2017
Washington, D.C. is first LEED Platinum city in the world
All city government buildings are powered by renewables.
Codes and Standards | Sep 11, 2017
Natural solutions would be most effective flood resilience policies for Houston
New green infrastructure should be part of rebuild.
Codes and Standards | Sep 8, 2017
Los Angeles luxury high-rise is first U.S. apartment building to achieve WELL Multifamily certification
Hollywood Proper Residences have verified indoor air and water quality features.
Codes and Standards | Sep 7, 2017
More than half of Houston properties at high or moderate risk of flooding are not in FEMA flood zone
Properties outside of these zones are not required to carry flood insurance.
Codes and Standards | Sep 6, 2017
Seventy percent of contractors have trouble finding workers
AGC survey indicates that fewer companies may be able to bid on projects.
Codes and Standards | Sep 5, 2017
New CTBUH initiatives to investigate link between fire and façades
In wake of Grenfell tragedy, Council forms new workgroup.