by Web Editor | Aug 14, 2017 | News
Roofs made from wood are one or the rarest roof types to find around these days, as concrete slab and shingles take over, according to Choice Solutions Roofing and Exteriors Co. In Oklahoma City.
Wood is not seen as strong as some other materials when it comes to construction, but in general well-maintained roofs made of wood can have a lifespan that ranges from 30 to 50 years. Having a wooden structure on top of a house has several good qualities, and it can look great. Here are some examples of wooden structures which are not the average roof that will provide an idea of how unique and marvelous structure topped off with wood can become.
The Centre Pompidou Metz has a hexagonal pattern of a load-bearing timber roof structure which is visible at night through its transparent covering membrane. It is interesting to know that the inspiration of the roof comes from a woven Chinese hat. Before this one-of-a-kind structure was created, it was studied from every angle to ensure that it would withhold heavy weather conditions. This woven like structure roof is made out of wooden beams, spaced 2.90 meters apart, forming a hexagon pattern that is 90 meters wide.
The timber used is glue laminated which enables the different lengths of the beams and makes them more resistant. It is without a doubt an astounding structure due to its complex curves and counter curves and therefore it is one of the most challenging and largest structure built up to date.
The mesh can allow the roof to expand 40 meters, made from protective fabric which consists of fiberglass and Teflon, forming a membrane over the wooden structure. This layer helps the inside temperature to stay natural. This building was created for displaying art and the goal behind the innovative structure was to draw tourism to Metz, France.
Read more on this from Woodworking Network: https://www.woodworkingnetwork.com/architectural-products/timber-structures-show-potential-wood-construction?ss=news,news,woodworking_industry_news,news,almanac_market_data,news,canadian_news
by Web Editor | Jul 28, 2017 | News
Following the general election held on June 8th, The Confederation of Timber Industries (CTI) announced the reconstitution of the Timber Industries All Party Parliamentary Group (APPG); their first annual general meeting (AGM) was July 12th at the House of Commons.
The Timber Industries APPG will help promote timber as the most sustainable and renewable building material and develop initiatives and economic measures to grow the whole UK Timber Industry supply chain. The Confederation of Timber Industries will assist Parliamentarians in their work by acting as the group’s secretariat and providing relevant information and logistic support.
The timber sector is in the top 50% of manufacturing industries in the UK, attracting investment and supporting jobs across the manufacturing and construction sectors, and adding over £10 billion per year to the UK economy. Every constituency in the UK benefits from jobs provided by our sector, whether in construction, manufacturing or distribution.
“We are pleased to see such widespread, cross-party support for our Industry,” said Roy Wakeman OBE, Chairman of the CTI. “The timber sector represents a major engine for the growth and development of the UK economy and, with the help of the Timber Industries APPG, we can deliver this message straight to key decision makers in Westminster. The CTI will be on hand to provide assistance and information to any MPs interested in the Industry, along with arranging regular visits to timber operations all over the country.”
From Woodworking Network: https://www.woodworkingnetwork.com/wood/pricing-supply/renewed-all-party-parliamentary-group-timber-industries-meets-westminster?ss=news,news,woodworking_industry_news,news,almanac_market_data,news,canadian_news
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
by Web Editor | May 24, 2017 | News
One building stands out in the old logging town of Prince George, Canada. Encased in a sleek glass facade, the structure towers above most of its neighbors, beckoning from afar with the warm amber glow of Douglas fir. Constructed almost entirely from timber in 2014, the 8-story, 30-meter building is among the tallest modern wooden structures in the world. But it is more than an architectural marvel. As the home of the Wood Innovation and Design Centre at the University of Northern British Columbia (UNBC), it is also an incubator for wooden buildings of the future — and a herald for a movement that could help to tackle global warming.
The building is less like a log cabin and more like a layered cake, constructed from wooden planks glued and pressed together, precision cut by factory lasers and then assembled on site. All told, the university avoided the release of more than 400 tons of carbon dioxide by eschewing energy-intensive concrete and steel, and the building locks up a further 1,100 tons of CO2 that was harvested from the atmosphere by British Columbian trees. In total, that’s enough to offset the emissions from 160 households for a year.
Wooden construction has ancient roots, but only in the past two decades have scientists, engineers and architects begun to recognize its potential to stave off global warming. By substituting concrete and steel with wood from sustainably managed forests, the building industry could curb up to 31% of global carbon emissions, according to research by Chad Oliver, a forest ecologist at Yale University in New Haven, Connecticut. In time, such a shift could help humanity to pull CO2 out of the atmosphere, potentially reversing the course of climate change.
“It’s the plywood miracle,” says Christopher Schwalm, an ecologist at Woods Hole Research Center in Falmouth, Massachusetts. “This is something that could have a significant impact on the riddle that is global environmental change.”
From Nature.com: https://www.nature.com/news/the-wooden-skyscrapers-that-could-help-to-cool-the-planet-1.21992
by Web Editor | May 15, 2017 | News
Mass Timber: The Next Great Disruption Of Construction, Wood Products Industries
The seeds of Andrew Waugh’s great disruption were planted in 2003. “Back then, people were saying we could ‘fix’ climate change by putting a solar panel on top of everything we built,” he remembered. “But we knew that wasn’t even close to enough.”
So Waugh’s East London architectural firm started studying mass timber, knowing it was the truly renewable building material – albeit largely unknown and untested in large-scale developments. “We were entranced by the opportunities this new material could provide,” he said.
It took five years for Waugh Thistleton Architects to hone their ideas – “so we could talk about the economic benefits of this kind of building” – and to bring that vision to reality in the world’s first mass timber tower, Murray Grove. The nine-story apartment complex in London’s Hackney borough was made from cross-laminated timber manufactured by KLH, an Austrian company.
Spruce strips were stacked crosswise three layers thick and glued together, producing horizontal beams and vertical structural wall boards that were harder than steel or concrete, with none of the associated carbon loss. The economic savings came at the construction site. Murray Grove was built in 27 days by four men, without a tower crane.
Using wood saved 1,150 tons of carbon dioxide from going into the atmosphere – the equivalent of running a wind turbine on top of the building for 210 years. And 29 families moved into new homes in a country with an overwhelming housing shortage.
From Treesource: treesource.org.
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