by Web Editor | Sep 2, 2015 | News
We ask: If the 19th century modern building material technology was associated with steel and the 20th century with concrete, could the 21st be the century of “MCT,” mass construction timber? Wood, one of the world’s oldest (and greenest) building materials, was the de facto construction material in American cities for over two centuries, falling out of favor when non-combustible materials capable of building high and wide emerged.
Today, highly engineered timber, sized to compete with these structural systems, is making a comeback in Europe, especially in Germany and in Austria, where the world’s first 8-story “ply-scraper” was recently completed. Stateside, the Boston Society of Architects recently featured Urban Timber, an exhibit showcasing innovative developments in wood technology and construction, and the U.S. Department of Agriculture is sponsoring a $2M ideas competition for the design of tall wood buildings. Given all of this hoopla, one could assume that we are on the verge of a global timber revolution, yet the U.S. is lagging far behind our European neighbors. In fact, to date, neither the U.S. nor Canadian building codes explicitly recognize mass timber structural systems.
Deeply committed to sustainability, we made the choice to dive feet first into connecting with the past to build the future by employing MCT for the primary structural system of our University of Massachusetts Amherst Design Building. Designed with Equilibrium Consultants, one of the world’s foremost timber engineers, the building will house the university’s Departments of Architecture, Landscape Architecture, Regional Planning, and Building Construction Technology, and is now under construction. Permitted through a variance application using the “alternative” method provisions of the building code, our 87,000-square-foot building furthers the university’s educational mission by incorporating examples of the inherent departments’ design practices. Targeting LEED Gold, it will be among the first MCT structures in the region when completed in 2017.
Laminated technologies, first developed in Europe in the 1980s, are allowing us to fabricate fairly massive timber components for the Design Building using small diameter trees sustainably harvested from managed forests. Our selected timber, black spruce, was sourced from Canada’s Boreal forest region, an area that constitutes the world’s largest land based biome. It is constituted to stand up to fire and maintain its structural integrity.
From Metropolis Magazine: https://www.metropolismag.com/Point-of-View/August-2015/Timbers-Transformation-An-Old-Building-Material-is-Reborn/
by Web Editor | Jun 8, 2015 | News
Tall wood buildings proponent and famed architect Michael Green teamed with Finnish timber and panel maker Metsä Wood to redesign the iconic Empire State Building in timber frame construction.
Part of Metsä Wood’s Plan B campaign to educate the public on the importance of wood in construction, the company says that wood should always be considered as a serious option in everything from design to construction and also in buildings in which wood hasn’t been previously used. The Plan B campaign re-engineers famous buildings – another project redid the Roman Coliseum – using engineered beams and panel instead of steel, stone and concrete. Metsä produces laminated veneer lumber – LVL – among many other high-strength wood construction lumber and panel products.
Green and his architectural design firm MGA created the design and construction plans for the wooden version of the Empire State Building.
“We designed a skyscraper using Metsä Wood’s Kerto LVL engineered wood as the main material from floors to column spacing,” Green said. “I believe that the future belongs to tall wooden buildings. Significant advancements in engineered wood and mass timber products have created a new vision for what is possible for safe, tall, urban wood buildings. The challenge now is to change society’s perception of what’s possible. In fact, this is the first new way to build a skyscraper in the last 100 years.”
From Woodworking Network: https://www.woodworkingnetwork.com/iconic-empire-state-building-gets-wood-makeover?ss=news,woodworking_industry_news
by Web Editor | Apr 24, 2015 | News
Although it may seem counter-intuitive, it would be better if we built buildings from wood than from concrete, brick, aluminum and steel.
We use millions of tons of these modern materials every year. They have many valuable properties, but are energy-intensive to create, accounting for around 16% of the entire planets’ fossil fuel production. Instead we could be using wood, which is also strong, renewable, and plentiful – we use only a fraction of the world’s available forestry resources.
Our research, published in the Journal of Sustainable Forestry, estimated that the world’s forests contain about 385 billion cubic meters of wood, with an additional 17 billion cubic meters growing each year. A mere 3.4 billion cubic meters is harvested each year, mostly for subsistence fuel burning; the rest rots, burns in fires, or adds to forests’ density.
Swapping steel, concrete, or brick for wood and specially engineered wood equivalents would drastically reduce global carbon dioxide emissions, fossil fuel consumption and would represent a renewable resource. What’s more, managed properly this can be done without loss of biodiversity or carbon storage capacity.
In our study undertaken by scientists from the Yale School of Forestry & Environmental Studies and the University of Washington’s College of the Environment we evaluated various scenarios including leaving forests untouched, burning wood for energy and use of wood as a construction material.
From Architecture & Design: https://www.architectureanddesign.com.au/comment/swap-steel-concrete-and-brick-for-wood-wooden-buil?utm_source=WIT042415&utm_medium=Email&utm_campaign=WeekInTrees
by Web Editor | Apr 17, 2015 | News
The American Wood Council has been awarded a $250,000 grant from the U.S. Department of Agriculture (USDA) to conduct research on the fire performance of mass timber buildings. AWC will partner with the National Fire Protection Association’s (NFPA) Fire Protection Research Foundation and the Property Insurance Research Group.
The AWC proposal is intended to advance the construction of taller wood buildings in the United States by demonstrating the fire performance of newer mass timber products. Over the last several years, tall wood buildings have been completed around the world using this new technology – including a 9-story building in London, 10-story in Prince George, Canada, and 14-story building now under construction in Bergen, Norway. These buildings have consistently demonstrated the successful application of mass timber technologies.
“Findings from this project will inform the building community and the insurance industry, providing an increased level of confidence in both the adequacy of this new construction type and when setting fire insurance premiums. This is a new method of construction to insurers, and in order to provide reasonable insurance coverage, they need to understand the performance of the material,” said AWC Vice President of Codes & Regulations Kenneth Bland. Increased use of wood in building construction also holds great promise for improved environmental impacts.
“Innovative mass timber wood products encourage sustainable forestry and capture large amounts of carbon, thereby reducing greenhouse emissions through both sequestration and the substitution of wood for more carbon-intensive products. The construction of tall wood buildings would put America at the forefront of an emerging global opportunity,” said AWC President & CEO Robert Glowinski.
When announcing the USDA 2015 Wood Innovations grant recipients, Agriculture Secretary Tom Vilsack said, “Working with our partners, the Forest Service is promoting deployment of new technologies, designed to support new market opportunities for wood energy and innovative wood building materials.”
From the American Wood Council: https://www.awc.org/NewsReleases/2015/newsreleases2015.php#20150415
