U.S. Forest Service Celebrates CLT During Forest Products Week

From October 21-27, 2018, we celebrate the value of America’s forests and recognize how vital they are to our well-being and national prosperity during National Forest Products Week. This week is recognized each year by a Presidential proclamation. At the USDA Forest Service, we work year round to create new opportunities for wood products that contribute to diversified rural economies and support sustainable forest management.

By supporting forest products markets, we have the opportunity to create safer communities by reducing wildfire risk, supporting rural economic development, and contributing to a more sustainable building sector. The Forest Service is working to develop the U.S. market for cross-laminated timber, or CLT, and other mass timber technologies.

CLT is a made from several layers of dried lumber boards stacked in alternating directions, glued and pressed to form rectangular panels. These panels have exceptional strength and stability and can be used as floors, walls and roofs in building construction, replacing or used along with traditional building materials such as concrete and steel. In fact, the International Code Council is examining whether or not tall wood buildings up to 18 stories will be included in the 2021 International Building Code. A final decision will be made later this year.

The state of Oregon has already adopted the proposed provisions for the International Code Council under its Statewide Alternate Method, and Washington State legislation already embraces mass timber construction. The U.S. Department of Defense is already using CLT in some of its on-base housing because of the incredible resiliency of the materials and their resistance to explosive forces.

We are on the precipice of major momentum in the marketplace with mass timber, with four factories in production, including two making architectural grade CLT; five factories coming online (either under construction or just completed); and three more factories recently announced in eight states. Compounded with the upcoming code decisions, we expect to see many more mass timber and CLT buildings in the near future.

From the USDA: https://www.usda.gov/media/blog/2018/10/22/forest-service-celebrates-cross-laminated-timber-during-forest-products-week

Washington OK’s Mass Timber Construction For State Building Codes

Washington State legislators changed building codes in new legislation, a move expected to increase in the use of mass timber products in commercial and residential construction.

The Washington Forest Protection Association says the move will boost business for rural communities and forest landowners and will lead to an increase in the use of mass timber products in commercial and residential construction.

Mass timber products like cross-laminated timber (CLT) have been on the upswing in Washington in recent years, with Vaagen Brothers Lumber of Colville. Wash., and Katerra, a California company both announcing CLT factories in Eastern Washington. The material is increasingly being used in buildings around the state, according to the Washington Forest Products Association.

For Katerra, founded in 2015, CLT is an element in a broader strategy for resetting the building and construction industry. The company announced $865 million Series D funding round led by the SoftBank Vision Fund to fund its new plant in Washington, and it has already accumulated more than $1.3 billion in bookings for new construction, spanning the multi-family, student and senior housing, and hospitality sectors. It already has a fully operational manufacturing facility in Phoenix.

“The $12 trillion construction industry is extremely fragmented with tens of thousands of companies using minimal levels of technology. While labor-productivity growth has skyrocketed in the overall global economy, the construction industry has averaged only 1% annual productivity growth over the past two decades,” said Jeffrey Housenbold, managing partner for SoftBank Investment Advisers. New investors in Katerra’s latest the round include the Canada Pension Plan Investment Board (CPPIB), a private investment fund managed by Soros Fund Management LLC, Tavistock Group, Navitas Capital, DivcoWest, and others.

Read more on this from Woodworking Network at https://www.woodworkingnetwork.com/news/woodworking-industry-news/washington-state-wil-revise-building-codes-okay-mass-timber.

Two-Story CLT Structure Simulated With 6.7 Earthquake

A two-story cross-laminated timber (CLT) structure is being subjected to the forces produced by a 1994 6.7 Northridge earthquake. The engineered simulation is expected to reveal ways in which tall wood buildings could survive damaging earthquakes.

Workers constructed a 22-foot tall wood test structure on UC San Diego’s shake table, a device for shaking structural models or building components with a wide range of simulated ground motions, like earthquakes.

Led by the Colorado School of Mines (CSM), the new test will examine the viability of constructing quake-resistant CLT buildings that could be as tall as 20 stories high.

“We are working to minimize the amount of time buildings are out of service after large earthquakes,” CSM engineer Shiling Pei said in a statement. “We are also focused on cutting the costs required to repair them.”

Cross-laminated timber advocates say it can be used to construct buildings of equal strength and fire-resistance as those made of steel and concrete. It has also fueled the passions of architects and environmentalists, who believe it to be a much greener method for housing the world’s growing population.

From Woodworking Network: https://www.woodworkingnetwork.com/two-story-cross-laminated-timber-simulated-67-earthquake?ss=news,news,woodworking_industry_news,news,almanac_market_data,news,canadian_news

Timber Construction Has Mill Machinery Rolling

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

Free Carbon Calculator Shows How Much CO2 Wood Construction Saves

WoodWorks, a proponent of large-scale wood construction in the U.S., launched an updated version of its free carbon calculator, adding more options for buildings made from cross-laminated timber (CLT) and other mass timber products. The addition reflects rising interest in large scale wood building construction.

WoodWorks, which receives finding from the U.S. Department of Agriculture as well as timber companies and forest products manufacturers, promotes use of wood products as a means to store carbon, instead of building materials such as cement and steel that require fossil fuel energy to manufacture, a move that can help reduce greenhouse gases.

“The carbon calculator is a useful tool for building owners and designers who’d like to gain insight on the environmental value of alternate designs,” said Bill Parsons, Senior National Director of the Architectural & Engineering Solutions Team at WoodWorks. “It also provides information that allows them to express the carbon benefits of their wood building projects.”

To calculate the carbon benefits of a wood building, users access the carbon calculator at www.woodworks.org/carbon-calculator and enter nominal wood volume information. The calculator then estimates:

• How much time it takes U.S. and Canadian forests to grow that volume of wood
• The amount of carbon sequestered in the wood products, and
• Greenhouse gas emissions avoided by not using more fossil fuel-intensive materials.
• It also uses the U.S. Environmental Protection Agency’s Greenhouse Gas Equivalencies Calculator to equate the total carbon benefit to number of cars off the road and home operational energy.

From Woodworking Network: https://www.woodworkingnetwork.com/news/woodworking-industry-news/free-carbon-calculator-shows-how-much-co2-wood-construction-saves?ss=news,news,woodworking_industry_news,news,almanac_market_data,news