The Framework Project, LLC announced that the company has successfully completed two significant fire tests on Cross-laminated Timber as a building material, “demonstrating for the first time the feasibility of tall mass timber buildings in the U.S.”
The two tests provide proof that a mass timber assembly using Cross-laminated Timber (CLT) and Glue-laminated timber (glulam) can be used safely while meeting stringent fire code requirements. Tall wood buildings using CLT and glulam have already been permitted in Europe, Australia, and Canada.
The tests also achieved breakthrough results, Framework Project says. A two-hour fire rating for the glulam beam to glulam column connection is a “fundamental breakthrough in mass timber construction, exceeding results conducted anywhere in the world.” This construction system allows mass timber to be used for high-rise construction, with some of the timber exposed. In previous CLT fire tests, the structural frame of timber has been concealed under layers of gypsum board.
Tests were conducted by Southwest Research Institute (SwRi), an independent, nonprofit, applied research and development organization.
Related Stories
Codes and Standards | Nov 7, 2018
New report addresses sound transmission of wood-framed assemblies
AWC document provides empirical sound transmission model.
Codes and Standards | Nov 6, 2018
AIA releases 13 new and updated contract documents
Includes new Contractor-Subcontractor Master Agreement.
Codes and Standards | Nov 2, 2018
New Milwaukee Bucks home called world’s first bird-friendly sports arena
Design will make bird collisions less likely.
Codes and Standards | Nov 1, 2018
Several barriers holding back widespread construction of zero energy buildings
Code improvements and voluntary programs could add momentum.
Codes and Standards | Oct 31, 2018
Boston’s new flood protection plan centers on new parks
Initiative would add 67 acres of public open space.
Codes and Standards | Oct 30, 2018
San Francisco plans tougher seismic building codes
Recommendations include addressing geotechnical issues like those faced by Millennium Tower.
Codes and Standards | Oct 26, 2018
Tall Mass Timber code proposals approved at Intl. Code Council public comment hearings
Proposals now go to online voting; final outcome expected in December.
Codes and Standards | Oct 25, 2018
Low-income neighborhoods could benefit most from green roofs
Those areas face the biggest risk from extreme heat.
Codes and Standards | Oct 24, 2018
Building design critical to prevent school shootings
Safety must be balanced with welcoming environment.
Codes and Standards | Oct 23, 2018
Codes in Florida Panhandle made buildings vulnerable to Hurricane Michael
Less stringent codes in northern parts of state linked to devastation.