by Web Editor | May 8, 2017 | News
The Sustainable Forestry Initiative Inc. (SFI) announced today that SmartLam, LLC, is the first U.S. manufacturer of cross laminated timber (CLT) to be certified to the SFI 2015-2019 Chain-of-Custody Standard. SmartLam is also the first manufacturer to produce CLT in the U.S.
SmartLam manufactures CLT for a variety of applications, including floor, roof and wall systems. SFI’s Chain-of-Custody Standard helps companies address the growing demand from governments, customers, and consumers for responsibly sourced forest products.
CLT is the next-generation of engineered wood products. Extensively tested and already widely used in Europe, CLT has vast applications for construction, industrial matting and bridging. Architects and builders choose wood because it looks great, has numerous environmental characteristics – including renewability – and it’s easy to work with. In addition, trees absorb carbon dioxide from the atmosphere as they grow, sequestering and storing the carbon while producing oxygen which reduces greenhouse gases and improves air quality.
“At SmartLam, we make CLT, but we like to tell our clients what we really sell is time. CLT increases construction speed and reduces a project’s cost and carbon footprint. Now, with certification to the SFI Chain-of-Custody Standard, we can also offer our clients supply chain assurance that our products are sourced from well-managed forests that are third-party certified to SFI’s rigorous standards,” said Casey Malmquist, President and General Manager at SmartLam.
SmartLam produces CLT at its Columbia Falls facility in Northwest Montana and is part of a global movement to use wood in tall buildings. Advances in technology are producing more engineered wood products and mass timber products that increase the capabilities of building with wood.
From PR Newswire: https://www.prnewswire.com/news-releases/smartlam-is-first-us-clt-manufacturer-to-earn-sfi-chain-of-custody-certification-300452619.html
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
by Web Editor | Oct 24, 2016 | News
Wood has a largely favorable environmental effect. A study of the National Research Programme “Resource Wood” recommends using wood more widely as a source of energy and as a building material.
The study examined the overall environmental impact of wood in Switzerland, analyzing the value chain from cutting trees to recycling wood or burning it, including the manufacture of semi-finished products such as paper, boards and pellets for heating purposes. Wood manufacturing is a high profile industry in Switzerland, home to suppliers familiar in the U.S. such as IGP power coating, Michael Weinig machinery, Jowat adhesives, Swiss Chrono laminate panel, and Lamello.
The study indicates that the sustainable use of wood can contribute to meeting our needs in terms of energy and raw materials with a smaller footprint than other resources.
The study estimates that the use of wood in Switzerland leads to a reduction in CO2 emissions of between 2.0 and 3.1 million tons per year – in comparison, Switzerland emitted a total of 52.6 million tons in 2013. Replacing gas or oil with wood accounts for two thirds of the estimated reduction. The last third is linked to construction and furniture production where wood replaces materials with a high carbon footprint such as cement, steel, aluminum and plastics.
Conducted in the context of the National Research Programme “Resource Wood” (NRP 66), the study based its analysis on the one hand on comprehensive statistics of material flows (origin, use and disposal of wood) that were compiled by the federal offices in particular. On the other hand, it referred to several databases evaluating the life cycle of products. “We considered different environmental impacts, in particular in relation to climate change, energy consumption, air pollution and loss of biodiversity”, explains Florian Suter, first author of the study and doctoral student at the Chair of Ecological Systems Design at ETH Zurich.
From Woodworking Network: https://www.woodworkingnetwork.com/wood/panel-supply/using-wood-more-widely-building-and-energy-helps-environment-swiss-researchers?ss=news,news,woodworking_industry_news,news,almanac_market_data,news
by Web Editor | Sep 2, 2016 | News
Working with Oregon State University (OSU), Skidmore, Owings & Merrill (SOM) has been busy testing its design for a timber tower. The time-lapse video shows a section of the wood tower being submitted to 82,000 pounds of pressure.
SOM has been working on the Timber Tower Research Project, funded by the Softwood Lumber Board (SLB) since 2013. The goal of the project is to develop safe, sustainable building technologies using mass-timber. Using timber may reduce a building’s embedded carbon footprint by as much as 60% to 70% compared to benchmark concrete building. The Timber Tower Research Project has developed a structural system called the Concrete Jointed Timber Frame that employs mass-timber elements with reinforced concrete connections.
Since 2014, SOM and OSU have developed a comprehensive physical testing program, which recently completed a full-scale test to prove the system’s ability to satisfy code requirements. The 36-foot by 8-foot specimen is comprised of a Cross-Laminated Timber (CLT) deck topped with a thin layer of reinforced concrete. The concrete is used to improve structural, acoustic, and fire performance. The composite allows for long spans with a relatively thin cross-section. The 82,000 pounds tested is roughly eight times the required design load. Forty-eight sensors recorded stresses as a hydraulic actuator loaded the specimen over two hours.
To see the video visit The Architects Newspaper: https://archpaper.com/2016/08/som-timber-tower-technology/#gallery-0-slide-0
by Web Editor | Jul 27, 2016 | News
Vancouver-based real estate developer PortLiving and world-renowned Japanese architect Shigeru Ban have unveiled plans for an upcoming hybrid timber structure said to be the tallest in the world. If so, this would mean it will be higher than other CLT wood structures, such as the 34-story design planned for Stockholm.
The residential high-rise Terrace house, which will be located in Vancouver’s Coal Harbor neighborhood, may set a new standard for urban luxury in design, sustainability and engineering innovation. The high-rise will feature a cross-laminated timber frame supported by a concrete and steel core. Wood for the project will be locally sourced from British Columbia, minimizing its carbon footprint.
Cross-laminated timber has been gaining popularity as of late, due to its lightness, sustainability, and ease of use. Planks of timber are glued and orientated at 90 degrees to each other, and are then crosslaid in layers. Those pieces are then shipped to construction sites and can be assembled by just a few workers, even for large buildings.
Its use in tall wooden buildings has also been growing. London, Stockholm, and Quebec are just a few of the cities who either already have large timber towers or have one in the works. Recent plans include a Swedish firm’s 436 ft. residential wood skyscraper in Stockholm, while a 12-story mixed wood high-rise is planned for construction in Portland, Oregon.
Building codes are being adjusted in Oregon and Washington State to permit the tall wood structures. But CLT hasn’t gone without opposition.
From Woodworking Network: https://www.woodworkingnetwork.com/news/woodworking-industry-news/canadian-high-rise-will-be-tallest-timber-structure-world?ss=news,news,woodworking_industry_news,news,almanac_market_data,news
