by Web Editor | Mar 26, 2018 | News
From: Panel World Editors
Officials with Oregon State University are investigating a construction incident when a CLT panel failed in mid March at a campus building project. A 4×20 ft. panel, part of the sub flooring between the building’s second and third floors, gave way after delaminating on one end. No construction personnel were in the area and no one was injured. The panel was replaced, other sections of CLT sub flooring were shored up, and work was halted on other CLT sections.
Steve Clark, OSU vice president of marketing and university relations, said the university is bringing in an outside engineering firm to determine cause of the failure and whether any other CLT portions of construction were at risk of failure, and CLT work will resume once any issues are addressed. Ironically, the new Peavy Hall building is home to OSU’s renowned College of Forestry, and the building is designed to showcase Oregon’s forest industry and the relatively new (in North America) mass timber construction movement. However, Clark says project managers “have the utmost confidence in CLT” and plan to finish the project as designed using CLT. The project’s CLT panels are being supplied by D.R. Johnson Lumber of Riddle, Ore., which was the first U.S. producer to gain CLT certification in 2016.
by Web Editor | Oct 30, 2017 | News
Oregon and Southwest Washington are well-positioned to become a manufacturing hub for cross-laminated timber — an innovative building product sometimes called “plywood on steroids” — according to a new study prepared by Oregon BEST.
The 110-page analysis found Oregon has the potential to create 2,000 to 6,100 direct jobs making cross-laminated timber and related mass timber products, which use adhesives and layered wood to create massive panels used as walls, floors and roofs, or beams. Mid-rise office and residential buildings are now being made with CLT, providing a dramatically lower carbon footprint than buildings using concrete and steel. Some high-rise projects using CLT are in the works.
Studies show CLT also cuts costs, mostly because construction takes less time. That cost advantage is projected to grow. “The cost of wood as a building material and as the raw material for CLT is expected to stay stable in the near future, while concrete and steel prices are forecast to raise with their relative energy prices and carbon costs,” the report states.
Oregon BEST, which commissioned the study along with partners, is a state-supported nonprofit that works closely with academia to nurture the state’s clean-tech industry.
CLT was developed in Europe, and European and Canadian companies got into the field before their U.S. counterparts. But D.R. Johnson became the first U.S. company certified to manufacture CLT in 2015, and is making it at its Southern Oregon plant in Riddle.
From Sustainable Life: https://pamplinmedia.com/sl/376727-262480-plywood-on-steroids-holds-great-potential-for-oregon-economy-environment
by Web Editor | Sep 22, 2017 | News
The production of cross-laminated timber, or CLT, has the potential to create significant job growth in the Pacific Northwest, according to a study published in July 2017 by Oregon BEST, a Portland-based nonprofit.
CLT is made of layers of glued 2-inch-thick dimensional wood crossing over each other at a 90-degree angle, creating a strong panel that can be used in tall buildings.
The 110-page study, “Advanced Wood Product Manufacturing Study for Cross-Laminated Timber Acceleration in Oregon and SW Washington,” was funded by $120,000 from the U.S. Economic Development Administration. The study included wood products companies from across the region, including D.R. Johnson in Riddle, the first structurally certified CLT producer in the U.S.
Valerie Johnson, president of D.R. Johnson, said she agrees with the study that cross-laminated timber will increase employment for rural areas in Oregon like Douglas County. D.R. Johnson started its first glue-laminated timber, or glulam, plant in 1967 in Riddle, and began producing cross-laminated timber in fall 2015.
“The community is part of the fabric of this company. It’s not only where our employees live it’s where our families have grown up and continue to live, and making this a successful venture is really important to us,” Johnson said. “We’re giving it all we can because we really want it to be successful.”
From Treesource: https://treesource.org/news/goods-and-services/cross-laminated-timber-jobs/
by Web Editor | Sep 11, 2017 | News
Thanks to a partnership with the Oregon State University College of Forestry, D.R. Johnson Wood Innovations in Riddle, Oregon, recently became the first U.S. certified manufacturer of cross-laminated timber.
Cross-laminated timber (CLT) is a massive structural composite panel product usually consisting of three to nine layers of dimensional timber arranged perpendicular to each other, much like layers of veneer in plywood and can be used as prefabricated wall, floor and roofing elements in residential, public and commercial structures. It is extremely strong and flexible, making it resilient to seismic activity.
Lech Muszyński, assistant professor of wood science and engineering, first saw CLT in production during his 2009 sabbatical in Austria. He says those facilities were unlike anything he had ever seen.
“I decided to visit as many as I could because the diversity was astounding,” Muszyński says. “I learned that you don’t need to be a big operation to make a difference in the market.”
Once back at OSU, Muszyński began making the rounds to industry partners to gauge their interest in constructing CLT test panels. He had little success until a meeting of the college’s Board of Visitors. Valarie Johnson, president of D.R. Johnson Lumber was in the room.
From Oregon State University: https://www.forestry.oregonstate.edu/osu-dr-johnson-work-together-produce-cross-laminated-timber
by Web Editor | Jun 13, 2017 | News
Timber construction is opening a new market that has been keeping lumber and milling machinery busy at a growing number of wood products companies, including Montreal’s Nordic Structures, Sauter Timber in Rockwood, Tennessee, SmartLam, in Columbia Falls, Montana, and D.R. Johnson, in Portland, Oregon.
Oregon-based D.R. Johnson Wood Innovations, a subsidiary of D.R. Johnson, specializes in the manufacture of cross-laminated timber, or CLT, and glue-laminated beams from Douglas fir and Alaskan yellow cedar. D.R. Johnson Wood was the first U.S. company to receive APA/ANSI certification to manufacture structural CLT panels – and CEO Valerie Johnson plans to help grow the U.S. market.
D.R. Johnson has received the first U.S. certification to manufacture cross-laminated timbers (CLT) under a new standard approved last year by the American National Standards Institute. D.R. Johnson is one of only three North American companies certified by the Engineered Wood Association to construct CLT for use in buildings.
Johnson’s company employs 125 at a traditional sawmill and laminating plant, which was recently expanded by 13,000 square feet for increased CLT production. They’re currently fielding calls from hopeful builders, and manufacturing samples to be tested for fire safety and structural quality. One recent new wood construction project is a 14-story wooden apartment tower being built in Portland, Oregon.
From Woodworking Network: https://www.woodworkingnetwork.com/wood/pricing-supply/timber-construction-has-lumber-milling-machinery-rolling
