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 5, 2018
New White Paper on Metal Panel Fire Safety Released
Has detailed information for insulation, fire safety requirements in U.S., other countries.
Codes and Standards | Aug 31, 2018
Trade war could make adaptive reuse more attractive
Higher cost of building materials could make rehab a better financial bet.
Codes and Standards | Aug 30, 2018
Metrics should guide strategy for schools seeking LEED certification
Assessing current status helps direct where improvements can have greatest impact.
Codes and Standards | Aug 29, 2018
The 2018 IAPMO solar and swimming pool codes now available
For installation and inspection of public and private swimming pools, spas, and hot tubs.
Codes and Standards | Aug 28, 2018
New York’s green roof program needs reform
Despite incentives, few owners add vegetative roofs.
Codes and Standards | Aug 24, 2018
Resilience, sustainability emphasized in plans for new 23,000-acre city in the Philippines
“A backup for when Manila fails.”
Codes and Standards | Aug 23, 2018
Cities promote deconstruction of old homes with mixed results
Market factors complicate efforts to recycle material from old structures.
Codes and Standards | Aug 22, 2018
Oregon is first state to change building code to allow tall mass timber buildings
Statewide alternate method allows early technical consideration and approval.
Codes and Standards | Aug 21, 2018
First mass timber panel made from structural composite lumber gets APA certification
Said to be much more cost effective than CLT options.
Codes and Standards | Aug 17, 2018
Zoning changes can be crucial to filling large, empty retail spaces
Alternative uses often require action by local officials.