by Web Editor | Mar 29, 2017 | News
Over the past several years, there has been a rise in mass timber construction around the world, demonstrating the strength, stability, and design flexibility of next-generation lumber technologies. To help inform architects, engineers, developers, industry professionals, students and interested parties, reThink Wood has launched the reThink Wood Research Library to serve as the go-to industry resource for those seeking information on the latest advancements in wood’s performance and advantages in the built environment.
reThink Wood is a body of research hoping to push boundaries and shift perceptions about building with wood.
Today, mass timber technologies, including cross-laminated timber (CLT), nail laminated timber (NLT) and glued laminated timber (glulam), are gaining traction in the U.S. for mid-rise and tall wood structures. The publicly accessible and comprehensive reThink Wood Research Library will be frequently updated with the latest research on wood building products and systems worldwide, as well as demonstrate where research gaps currently exist.
“The future of mass timber in the U.S. is really starting to heat up,” said Lucas Epp, head of engineering at StructureCraft. “In the next few years, there will be considerably more mass timber buildings built than we have today. The industry is starting to see that this type of construction is fast, cost effective and sustainable.”
Advocates of CLT 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/news/woodworking-industry-news/wood-research-library-advances-timber-building-construction?ss=news,news,woodworking_industry_news,news,almanac_market_data,news,canadian_news
by Web Editor | Mar 20, 2017 | News
A new piece of bipartisan legislation has been tabled by The United States Senate and House of Representatives named the Timber Innovation Act. The bills were put forward to further the development of tall timber buildings in the U.S., thereby supporting the nation’s considerable timber market and the rural manufacturing jobs it entails.
“The United States has an opportunity to bring new, sustainable mass timber technology to our construction industry, and the Timber Innovation Act directs technical assistance and research components already in place,” said Robert Glowinski, President and CEO of the American Wood Council (AWC).
The bills aim to create a focused research and development program to aid in the advancement of tall wooden structures in the United States. Federal grants will be awarded to fund the research undertaken on state, local, university, and private sector levels. This includes the provision of education to architects and builders, in relation to timber construction.
“Mass timber technology is revolutionizing and disrupting the way buildings are being built around the world. Unfortunately, the United States has been trailing other markets in this regard. The Timber Innovation Act will significantly contribute to enhancing our industry’s ability to close the knowledge gap and stimulate private sector investment,” remarked general manager of the Binational Softwood Lumber Council (BSLC), Cees de Jager.
Additionally, the act will introduce educational and technical programs on timber design and applications, in conjunction with the Department of Agriculture and state foresters. Responding to continued job scarcity in the aftermath of the recession, retrofitting buildings in regions of high unemployment will create new positions in rural areas, while also addressing environmental concerns.
From ArchDaily.com: https://www.archdaily.com/866841/new-timber-innovation-act-advocates-for-nationwide-timber-construction-in-the-united-states
by Web Editor | Feb 3, 2017 | News
For centuries, wood was civilization’s primary construction material, but as the use of concrete, glass and steel grew, wood was largely relegated to flooring and interior paneling.
An exhibition at the National Building Museum in Washington challenges that narrow use. It suggests that tomorrow’s buildings will or should be constructed of wood. The exhibition, “Timber City,” highlights the wide range of benefits offered by cutting-edge methods of timber construction, showing that wood is a modern, strong and versatile material.
The show highlights the two winners of the Tall Wood Building Prize, sponsored by the U.S. Department of Agriculture. “One in New York City and one in Portland, Oregon, are two premier cross-laminated (engineered, pre-fabricated) timber buildings going up right now,” said the exhibition’s curator, Susan Piedmont-Palladino. “They’re similar structures. Both buildings are using this material … in slightly different ways, but the goal is to build right in the middle of the city.”
And that’s what makes timber the perfect choice in a busy district like New York’s Manhattan, where construction speed and efficiency are vital. “Buildings go up very quickly. The materials for the building — the walls and the floors and the ceilings — are manufactured off-site. They come on a truck, pre-fabricated,” Piedmont-Palladino said. “So a work crew armed with power screwdrivers can basically assemble the building extremely quickly. There’s no long-term curing of concrete” needed.
Information panels in the exhibition explain that concrete manufacturing is the world’s third-largest source of greenhouse gases, and that harvesting timber — a renewable resource — has a lower environmental cost than mining the materials needed to make steel and concrete.
From VOANews.com: https://www.voanews.com/a/museum-cross-laminated-wood-building-material/3697202.html
by Web Editor | Jan 18, 2017 | News
Mass timber is sprouting up in cities in North America and abroad. After years of feasibility studies and design proposals, buildings six stories or taller constructed primarily from pre-engineered wood products are being considered in cities around the world.
In London, one proposal, called the Splinter, would rise to 100 stories. In Chicago, Perkins+Will (in collaboration with Thornton Tomasetti and the University of Cambridge) has designed an 80-story high-rise with 300 duplex apartments. If built, River Beech—a key component of P+W’s master plan for the Riverline development—would be made almost entirely from mass timber.
So-called “plyscrapers” are still a tiny sliver of nonresidential construction. In the past five years, only 17 buildings seven stories or taller have been completed worldwide, mostly in Europe and Canada. Six more have started construction, according to the American Wood Council.
Mass production of timber for high-rise construction is still in its infancy in North America. Specifying these products in the U.S. faces resistance from insurers, regulators, and code officials. Steel fabricators and concrete suppliers disparage mass timber for taller buildings on the grounds of safety and durability.
Proponents cite the speed at which tall buildings can be constructed using pre-engineered wood and mass timber’s ability to sequester carbon. Joey-Michelle Hutchison, RA, LEED AP BD+C, CSBA, Associate Vice Principal, CallisonRTKL, says, “The role of mass wood is going to grow because of the demand for sustainable design.” Researchers from Yale and the University of Washington, in a study published in the Journal of Sustainable Forestry (March 28, 2014), postulated that using wood substitutes for constructing buildings (and bridges) could save 14–31% of global CO2 emissions.
From Building Design + Construction: https://www.bdcnetwork.com/mass-timber-what-heck-wow
by Web Editor | Jan 4, 2017 | News
When the 12-story Framework building planned at Portland’s Northwest 10th Avenue and Glisan Street is complete, it may look to passers-by like any other Pearl District condo tower.
But it will hold a special distinction in the sustainable building world: the nation’s tallest building made primarily from mass timber (long pieces of timber, glue-laminated together).
Designers and engineers across the country are chasing an innovative style of mass timber construction pioneered in Europe, which they believe will go a long way to reduce the carbon footprint of large buildings.
The breakthrough came with the development of cross-laminated timber or CLT: Large, layered flat panels used as floors and walls (rather than just beams as vertical posts).
As Oregon moves on multiple fronts to take the national lead in all-wood construction for tall buildings, Portland State University stepped up early to do basic research. PSU won a three-year, $400,000 National Science Foundation grant to study two aspects of mass timber construction: its sustainability and how well it resists earthquakes.
From Sustainable Life: https://pamplinmedia.com/sl/337694-214716-psu-tests-new-green-woods-seismic-strength
