Posts tagged with "Mass Timber":
CLT, GLT, NLT, DLT, and all the other LTs: You’ll find our favorite laminated timbers made by U.S.-based manufacturers and suppliers below. You’re welcome!
CrossLam CLT Structurlam
Significantly lighter than the usual alternative, concrete, CrossLam CLT is made by layering panels of timber in two directions into a strong building solution for flooring, walls, roofs, and cores. Made with wood sourced from sustainably managed forests, StructurLam’s CLT is carbon negative. Alongside its reduced carbon footprint, its durable, easy-to-assemble system makes it ideal for public and commercial buildings, schools, healthcare facilities, and multifamily housing.
TerraLam CLT Sterling
Sterling’s CLT mats, made of renewable southern yellow pine, rely on a cross-grain technology that allows them to be durable and strong. They are made in three- and five-ply construction, which makes them lighter and stronger than mass timber alternatives. TerraLam is available in three sizes: 300 (8 feet by 14 feet), 504 (4 feet by 16 feet), and 508 (8 feet by 16 feet).
Douglas Fir Glulam Beams Western Structures, Inc.
Western Structures fashions Douglas fir glulam beams by gluing panels of lumber together to make extraordinarily deep proportions. Ranging from 3 inches to 60 inches deep, with widths of up to 17 inches, these beams are ideal for a variety of projects.
Plywood CDX Panels Freres Lumber Co.
Touch-sanded in Lyons, Oregon, these plywood veneers are glued to form a range of plywood panels available in a variety of sizes: 5/16 inch 3-ply, 3/8 inch 3-ply, 15/32 inch 4-ply and 5-ply, 19/32 inch 4-ply and 5-ply, 23/32 inch 5-ply, and 1 1/8 inch 7-ply. Certified by the APA, the panels meet the U.S. Product Standard PS 1-95.
CLT Panels and Glulam Beams DR Johnson Wood Innovations
Manufactured in a factory in Riddle, Oregon, these CLT panels are made of Douglas fir in 3-inch and 6-inch panels. Meanwhile, the Riddle laminators fabricate and glue structural glulam beams made of both Douglas fir and Alaskan Yellow Cedar at the same facilities.
DowelLam DLT StructureCraft
This all-wood mass timber Dowel Laminated panel system is incredibly versatile and offered with five different profiles: kerf, chamfered edge, square edge, fluted, and acoustic. Fully customizable, each format allows for a range of benefits, including sound absorption, aesthetic considerations, and structural performance.
Mass timber is gaining steam and is set for another major boost, as recently passed code updates will allow structural timber up to 18 stories high. To keep up with the industry and its quickly changing landscape, we have mapped out the major players and the big issues surrounding wood innovation, from completed projects to boundary-pushing proposals that could shape the future of wood construction.Get caught up on the most important news with our latest timber issue: International Code Council moves to embrace taller mass timber buildings Legislation is slowly but surely easing up the restrictions on mass timber construction, and this code update should help tall timber reach the market. The U.S. mass timber industry is maturing while it branches out In the U.S. mass timber is moving from niche construction technique to industry standard, and manufacturers across the country are rising up to provide. Explore these maps of North America's blooming timber industry AN mapped the schools, organizations, and manufacturers across the U.S. and Canada that are powering the domestic timber boom. Shigeru Ban Architects burnishes its status as a leader in mass timber Known for experimenting with paper tubes and bamboo, Shigeru Ban Architects is burnishing its reputation in tall and mass timber. …
As mass timber becomes more viable, it is being envisioned for a wider range of project types and structures. Here are four designs from around the world that signal what wood's future could look like.Can Sidewalk Labs realize a totally timber smart city? Sidewalk Labs is planning a timber smart city to showcase state-of-the-art technology with help from Michael Green Architecture, Beyer Blinder Belle, and more. CRÈME proposes floating timber bridge to connect Brooklyn and Queens Brooklyn-based CRÈME/Jun Aizaki Architecture & Design's LongPoint Bridge could connect Brooklyn and Queens, offering a new path for commuters. Kengo Kuma is crafting a timber temple to sports for the 2020 Olympics Kengo Kuma's National Stadium for the Tokyo 2020 Summer Olympics is marching to completion and wading through some controversy over its timber. This 18-story building went up in 66 days thanks to the right mass timber products The Brock Commons Tallwood House designed by Acton Ostry Architects was erected in only 66 days thanks to products provided by Structurlam.
Can one of the world’s oldest building materials form the foundation of a sensor-integrated “smart” neighborhood? Alphabet subsidiary Sidewalk Labs is making a go of it on the Toronto waterfront, and has enlisted wood advocates and Katerra partner Michael Green Architecture (MGA) to design flexible, mixed-use timber buildings for its 3-million-square-foot Quayside project.
If the 12-acre site is developed as planned, it would become the largest timber project in the world.
The ground-up development in Quayside is leaning on mass timber because Sidewalk Labs has touted the material as sustainable and as tough as steel, as well as because cross-laminated timber (CLT) panels work well in prefabricated structures. MGA has designed a kit-of-parts that can be used for buildings of every scale, and Sidewalk Labs is reportedly looking at constructing a collection of 12 mass timber towers, with the tallest topping out at 30 stories.
Sidewalk Labs is aiming to build within Quayside’s existing zoning, which would entail 90 percent residential development.
The neighborhood will encourage street-level interaction through a combination of design and environmental control. MGA has anchored the base of each building with a “stoa,” or an open-air covered walkway supported by a colonnade (in this case, V-shaped heavy timber columns) that will contain retail and communal gathering places.
Of course, Toronto’s winters are especially punishing, and doubly so on the waterfront. Sidewalk Labs tapped the architecture studio PARTISANS to design an “outdoor comfort toolkit,” including a computer-controlled retractable canopy that will clad the stoas. The umbrella-like structures will block out wind, rain, and snow while heated pavers will keep snow off of the streets; the company claims that both advancements will double the amount of time residents will be able to spend outdoors.
Beyer Blinder Belle is responsible for the site’s master plan and Toronto-based PUBLIC WORK will be designing the landscape. Sidewalk Labs also reached out to the Ontario-based gh3*, Toronto’s Teeple Architects, and Toronto-based Dubbeldam Architecture + Design to create residential unit concepts. Sidewalk Labs will submit its final Master Innovation and Development Plan for public comment sometime this spring.
When it came time for Acton Ostry Architects to select a manufacturer for the mass timber components of the 18-story Brock Commons Tallwood House at the University of British Columbia in Vancouver, Canada, Structurlam stood out.
“Experience, qualifications, supply, schedule, cost” all worked to Structurlam’s benefit, according to Russell Acton, principal at Acton Ostry. Acton explained that along with supplying mass wood structural components, Structurlam provided end-to-end oversight and support by “[collaborating] with the structural engineer, construction manager, and mass wood erector to refine the design and optimize cost, quality, and constructibility considerations for the mass wood components.”
As a result of Structurlam’s comprehensive approach, the hybrid concrete-and-mass-timber structure building was erected in record time: just 66 days. The tower features 1,302 10-inch-by-10-inch Douglas Fir Glulam columns and 464 Douglas fir CLT panels of varying thicknesses, all fabricated by Structurlam.
But don’t think that all that wood is going to be hidden behind the project’s fire-resistant Type X gypsum wallboards. Instead, wood finishes cover the building inside and out. That includes the dormitory’s shared spaces, where JSV Architectural Veneering & Millwork has crafted maple veneer panels and wood grilles for the project. In other areas, 24-inch-by-24-inch albus wood ceiling panels by Linea Ceiling provide a “decorative and functional” alternative to conventional acoustic drop-down ceilings.Design Architect: Acton Ostry Architects Construction: Urban One Builders Mass Timber Fabricator: Structurlam Facade Fabricator and Installer: Centura Building Systems Punched Window Manufacturer: Phoenix Glass Custom Interior Millwork: JSV Architectural Veneering & Millwork Drop Ceiling Fabricator: Linea Ceiling & Wall Systems Door Manufacturer: McGregor & Thompson
This article originally appeared as part of our January 2019 print issue in the timber feature.
Kengo Kuma’s $1.4 billion National Stadium is over 25 percent complete and should open in November 2019 for six months of testing before the Tokyo 2020 Summer Olympics kickoff. The three-tiered stadium is expected to seat 68,000 during the games and 80,000 when it’s converted into a home field for the Japan National Football Team.
Utilizing a half-covered roof and an abundance of overflowing greenery, Kuma’s flat structure is a far cry from the yonic stadium designed by Zaha Hadid Architects, which was originally chosen in 2015. The distinct layers and open-air columns of Kuma’s stadium are references to the 1,300-year-old Gojunoto pagoda at Horyuji Temple in Ikaruga, the oldest timber building in the world.
Kuma has pledged that the stadium will source over 70,000 cubic feet of larch and cedar wood from nearly all of Japan's 47 prefectures, with an emphasis on areas hit hardest by the 2011 earthquake and tsunami.
The steel roof over the ovoid stadium will be supported by a lattice of exposed timber beams and joists. Kuma has rimmed the track and field building with open-air loggias and clad the edges in a screen of vertical wood, creating a breezy, naturalistic setting that’s perfect for the summer games. It’s not all smooth sailing for the Tokyo 2020 commission, however, as the U.S.-based Rainforest Action Network has accused the group of sourcing endangered tropical timber from Malaysia and Indonesia to build the 2020 stadiums. A Tokyo 2020 spokesman has denied the claims, but the commission is working to further tighten up its sourcing standards regardless.
This article originally appeared as part of our January 2019 print issue in the timber feature.
President Donald Trump’s tariffs, enacted in November 2017, have not yet made a significant impact on the U.S. mass timber industry. But if Trump chooses to take more aggressive action in the next two years of his administration, this could dramatically change. This urgency, coupled with the recent global obsession with building tall wood structures, newly motivates American wood manufacturers to become independent of foreign suppliers. This would entail American manufacturers catching up in machine technology and production capacity to bolster domestic trade and support innovative architecture sourced from home.
What’s clear is that U.S. demand for wood buildings is there. The country’s largest producer of cross-laminated timber (CLT), SmartLam, has experienced such rapid growth since opening six years ago that it is building a new headquarters in Columbia Falls, Montana, and planning a second facility in Maine to supply what the industry thinks will be an influx of midrise construction in New York and other cities along the Eastern seaboard.
“The expansion here is simply driven by need,” said SmartLam CEO Casey Malmquist. “There’s always been a grassroots support for CLT in the U.S. and a recently increased interest in research and testing. But now we’re no longer speculating about whether it will work—it’s going mainstream.”
While similar Pacific Northwest companies like DR Johnson and Katerra, as well as firms such as LEVER Architecture and Michael Green Architecture, have long led the field, production is growing in uncharted territories. South Carolina–based LignaTerra is adding another plant in Maine, while Canadian leaders like Nordic Structures in Montreal and Structure Fusion in Québec City, which already supplied CLT to projects across the country, are now focusing more attention on supplying the eastern U.S. market. Production is even swelling in the South with Texas CLT LLC, which is reopening a mill in southwest Arkansas.
But pioneering European companies, which have historically dominated the market and supplied American developers, are now putting down roots in the U.S. Austrian giant KLH is partnering with International Beams’ new factory in Dothan, Alabama, by supplying it with glulam blanks. Having opened this past September, it is the first plant east of the Rocky Mountains to produce CLT in the country and will primarily utilize the unique Southern Yellow Pine native to the region.
These investments show that the race to build such production facilities is vital to the U.S. market becoming competitive with other countries. But many experts say we need to increase cultural acceptance of mass timber as well as get investors on board before the industry starts churning up a sizable profit.
“The real strategy is that the big manufacturers in Europe are focused on making franchises here,” said Alan Organschi, principal of Gray Organschi Architecture in New Haven, Connecticut. “They can produce higher quality products cheaper, even with overseas shipping, than manufacturers can in the U.S. and Canada.”
Organschi’s firm has been at the forefront of timber innovation for 20 years. He is confident the market is growing and will prove that by designing 6- to 14-story buildings, the sweet spot for mass timber construction. Dominique Briand, general manager of Canadian structural engineering firm Structure Fusion, is also optimistic about North America’s future, but feels certain that product-specific issues still need to be addressed before wood can match the quality of other structural materials like steel and concrete.
“The problem is the tools are not there,” Briand said. “There’s not enough manpower or knowledge to make or sell mass timber in the United States. Plus it’s a disorganized market, which creates a big gap between the product and the project.”
Briand believes that as long as timber is trendy, it will take young U.S.-based companies about five to ten more years to be competitive with Europe. In the meantime, architects, engineers, and educators are working to imagine groundbreaking designs at modest scales to ramp up domestic interest and encourage policy changes.
Many U.S. states are using financial incentives to entice manufacturers to locate to their respective regions. In Maine, both the state and federal governments have provided funding for the University of Maine’s extensive research to advance timber assemblies. Russell Edgar of the university’s Advanced Structures & Composites Center says the ultimate goal of this work is to organize the state’s supply chain in order to make Maine viable for these companies.
“People are talking a lot about South Carolina and Georgia since they grow trees like corn at such rapid rates,” he said. “But in Maine, we have proximity to these huge markets in New York and Boston, so we’re busy trying to find ways to get these companies here now.”
Sourcing timber products within 250 miles of a project is a huge advantage to practicing sustainability and boosting regional economies—not to mention a reason for rarely crossing borders for building materials. But a little competition is healthy, especially for lumber producers who want to bid in a fair marketplace.
“The more people there are, the better it will be,” said Briand. “I only worry that because we’re such a fast-evolving industry, a lot of companies will build huge facilities and focus solely on making and selling products. It’s not just about the products; it’s about creating strong business plans so the investment pays off.”