Game Changer: Engineered Wood Opens Doors in the Construction Market

CLT

Is engineered wood ‘the new concrete?’ As demand grows, some industry sources say mass timber is set to open new doors in construction for the lumber industry, offering lucrative opportunities at the intersection of timber and tech. Advances in the processes used to make cross-laminated timber and other engineered wood products have set up a boom for tall wooden buildings with similar if not better structural integrity than those made with steel and concrete, making the construction industry as a whole more environmentally friendly.

Made from industrially dried quick-growing wood – including pine – CLT is up to four times lighter than reinforced concrete. A building made with CLT instead of traditional concrete uses up to 70 percent less material and can cut construction times by a third, sending project profitability through the roof. Developers are definitely taking note.

In a recent issue of the property insurer GenRe’s ‘Property Matters’ publication, Property/Casualty Senior Consulting Underwriter Leo Ronken examines “what’s so good about wood,” going down a long list of the attributes that have made engineered wood increasingly popular with architects, legislators and construction pros.

“In the global trend toward the construction of buildings that meet ecological needs, wood has some clear advantages over traditional construction materials such as steel and concrete. With advances in engineered wood materials and components come possibilities to construct increasingly larger buildings – a trend being witnessed around the world.”

Real estate services firm JLL has also noted the trend and what it could mean moving forward, calling it a ‘game changer.’

“The emergence of successful mass timber projects across all sectors is a trend which looks set to continue and develop as the industry demands more innovation. As Lucas Epp, Head of Engineering at StructureCraft in North America, says mass timber projects require fewer construction workers on site, less waste and higher quality of work. ‘Mass timber office buildings are also now competing with steel and concrete on cost,’ he adds.”

The forest products industry has long depended on single family homes, but mass timber opens the possibility of entrance into new markets where wooden framing was previously seen as inappropriate. Buildings made with mass timber are able to meet strict building codes, including those measuring fire resistance.

Another benefit of increased demand for CLT is the fact that it can be made with smaller, second-growth timber, reducing the need for so many big, solid logs from older trees and fueling greater efficiency at mills.

Image via Woodworks.org

Angular House Extension Brings Wooden Architecture to Urban Paris

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All-wood additions have become a more common sight in suburban neighborhoods, and now, they’re popping up in urban locations, too. This modern, geometric wooden extension to a house in Paris contrasts with the more historical architecture seen next door and on much of the street. BANG architects is a single-story addition topping a two-story home to create a new central living space and terrace.

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“We also opted for wood as the main construction material – in pat in order to limit the weight on the existing house, but also to have great flexibility in determining the volume of the new space, and in order to reduce the environmental impact of the construction project,” say the architects.

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The addition is described as a heliotrope and was designed so that the windows look out onto the terrace and onto the classic Parisian plane trees planted along the avenue rather than into the neighboring buildings. Six meters of ceiling height are illuminated by a glass roof. The whole thing is clad in thin strips of untreated pine.

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Wood facades are showing up more often in modern structures, eliminating the coldness of steel and concrete. Not only does it make these buildings feel more welcoming, it’s also more sustainable.

Trend Watch: ‘The Hobbit’ Sparks New Interest in Wood Interiors

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All of the stunning custom woodwork seen inside Bilbo Baggins’ earth-sheltered home in the 2012 film ‘The Hobbit: An Unexpected Journey’ has piqued public interest in intricate craftsmanship. The filmmakers and set designers interpreted author J.R.R. Tolkein’s description of Bilbo’s residence, Bag End, in rich wood tones with lots of arches.

“We used round doors to be true to Tolkein’s descriptions in the book and also we used his sketches,” production designer Dan Hennah told The Los Angeles Times. “The ceiling in the kitchen is stone and inspired by cellar design, and the arches throughout were used as a structural element to maintain the premise that Bilbo’s house is underground.”

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The magazine Woodworking Network also took a look at impact the film (and of course, the books) has had on the custom woodworking industry. The round doors, scrolled details and other elements of the hobbit house have inspired similar treatments in private homes, hotels and shed designs.

Woodworking Network notes that “In the film, perfectly circular doors are indeed set in matching jig-sawn door frames, components pegged into place. Middle-earth is a pre-industrial society, so everything had to appear handmade and unique.”

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Take a look at one particularly notable example, by architect Peter Archer. Beautiful hobbit-inspired details include a ‘butterfly’ window with center-hinged panels, a round 3-inch-thick door and rounded rafters (pictured above, and in the video). Fine Homebuilding has more pictures.

34-Story Wooden Skyscraper Planned for Stockholm

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The wooden skyscraper revolution continues as more architects get back to basics, even for structures that reach into the clouds. Sweden’s Berg | C.F. Moller’s proposed design for HSB Stockholm’s architectural competition 2023 envisions a future in which our tallest residential buildings are made of wood. The firm’s 34-story design would be all-wood construction over a concrete core, with both social and environmental sustainability at the forefront of the project.

The architects chose wood because its production has no waste products and binds CO2. It’s low weight but very strong, and more fire resistant than both steel and concrete due to the fact that 15% of its mass is water. The beams and pillars of the skyscraper are made of solid wood, and each apartment is lined in it for a warm, homey feel.

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The skyscraper has a stepped design at the top, allowing for private rooftop gardens complete with full-sized trees. The lower apartments have glass-covered verandas, and the whole building is powered by rooftop solar panels.  It’ll not only provide eco-friendly residences, but act as a landmark for the city.

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This is just one more example of innovative visions for super-tall wooden structures coming out of the architecture world in recent months. The architecture firm that designed the Willis Tower (formerly Sears Tower) of Chicago plans a 42-story wooden skyscraper, the tallest of its kind, and architect Michael Green has designed a concept for a 30-story tower in Vancouver.

Trend Watch: Under-Finished Wood Products More Popular Than Ever

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Even as the world around us gets more and more high-tech and ultramodern design pushes synthetic materials and surfaces, consumers are quietly returning to the comfort and natural beauty of barely-finished wood. The Woodworking Network notes a trend of rustic wood treatments in a range of products, including decor and furniture.

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Wood products are often left in an almost entirely natural state to foster a connection with the trees from which they came, and add an organic, handcrafted feel to any setting. Many woodworkers leave the edges of wood raw, lightly stain or seal it instead of painting it, add distressed finishes or reclaim previously used wood.

Just browse the handmade goods marketplace Etsy.com to get a sense of the possibilities. Crafters offer everything from salvaged signs and tree-slice candle holders to hand-turned wooden bowls and large-scale furniture. The beauty of rustic wood is that it’s equally at home in virtually any interior design style, including country, cabin, cottage, contemporary and modern settings

Photos:  Rachael Towne, YeWoodSmyth

Trend Watch: Home Remodeling Market Starts to Soar

Bathroom Remodel

For the first time in years, remodeling companies are seeing a considerable boost in business from one quarter into the next. Reports from the National Association of the Remodeling Industry (NARI) show a steady increase in overall business conditions throughout 2013. Pent-up demand for home renovation projects has resulted in many companies seeing a backlog of work over the summer and fall.

Projects that have been postponed due to the economy are starting to pick back up, and are a key driver of growth. “The general sense is that consumers are tired of waiting and feel more secure about spending money, which is also reflected in the higher values in jobs sold,” says Tom O’Grady, chairman of NARI’s Strategic Planning & Research Committee.

Higher-value jobs sold, more inquiries, and conversion of bids to jobs are all up, while requests for bids remained the same as last quarter. Business ratings are high even going into the holiday season, which is traditionally a slower time.

Photo: Brad Bowsher