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Log Cabins? No, These Wooden Buildings Are High-Rises
Jan. 1, 2019 | The New York Times | By C. J. Hughes.

"But proponents scored a huge win last month when the International Code Council, an influential advisory group in Washington, concluded that some wooden buildings could climb as high as 18 stories, more than twice the current permissible height, without compromising safety."....."In addition to their green benefits, he said, wood buildings perform well in earthquakes because of their lighter weight and flexibility.".....Proponents of wood must still overcome a longstanding bias. In the 1800s, fires were a scourge, prompting restrictions on wood. But steel is not infallible and can buckle in extreme heat, ....“But we’ve gotten comfortable using steel and concrete products, so the question’s been, ‘Why would we change?’” ....Still, wood is not what it used to be. The decline in old-growth forests means developers can no longer count on huge single trunks to support floors. Instead, they rely on mass timber, an engineered product made of layers of spruce or fir pressed together in a way that is similar to plywood but with a more elegant look......Wood remains expensive, but the assembly-line aspect of mass-timber production, in which factories make large panels, then assemble them on-site, saves time and labor costs......
construction  timber  wood_products  design  lumber  building_codes  skyscrapers 
january 2019 by jerryking
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