Timber’s Transformation: An Old Building Material Is Reborn

by | Sep 2, 2015 | News

We ask: If the 19th century modern building material technology was associated with steel and the 20th century with concrete, could the 21st be the century of “MCT,” mass construction timber? Wood, one of the world’s oldest (and greenest) building materials, was the de facto construction material in American cities for over two centuries, falling out of favor when non-combustible materials capable of building high and wide emerged.

Today, highly engineered timber, sized to compete with these structural systems, is making a comeback in Europe, especially in Germany and in Austria, where the world’s first 8-story “ply-scraper” was recently completed. Stateside, the Boston Society of Architects recently featured Urban Timber, an exhibit showcasing innovative developments in wood technology and construction, and the U.S. Department of Agriculture is sponsoring a $2M ideas competition for the design of tall wood buildings. Given all of this hoopla, one could assume that we are on the verge of a global timber revolution, yet the U.S. is lagging far behind our European neighbors. In fact, to date, neither the U.S. nor Canadian building codes explicitly recognize mass timber structural systems.

Deeply committed to sustainability, we made the choice to dive feet first into connecting with the past to build the future by employing MCT for the primary structural system of our University of Massachusetts Amherst Design Building. Designed with Equilibrium Consultants, one of the world’s foremost timber engineers, the building will house the university’s Departments of Architecture, Landscape Architecture, Regional Planning, and Building Construction Technology, and is now under construction. Permitted through a variance application using the “alternative” method provisions of the building code, our 87,000-square-foot building furthers the university’s educational mission by incorporating examples of the inherent departments’ design practices. Targeting LEED Gold, it will be among the first MCT structures in the region when completed in 2017.

Laminated technologies, first developed in Europe in the 1980s, are allowing us to fabricate fairly massive timber components for the Design Building using small diameter trees sustainably harvested from managed forests. Our selected timber, black spruce, was sourced from Canada’s Boreal forest region, an area that constitutes the world’s largest land based biome. It is constituted to stand up to fire and maintain its structural integrity.

From Metropolis Magazine: https://www.metropolismag.com/Point-of-View/August-2015/Timbers-Transformation-An-Old-Building-Material-is-Reborn/

Minnesota Office Building Made Of Wood Would Be A U.S. First

by | Mar 4, 2015 | News

Last November, the Hines development company unveiled plans for a new office building in the North Loop section of Minneapolis. Seems like ordinary news, except that the building would be the first of its kind in the U.S to be made primarily of wood. The builders refer to the project as “T3” for “Timber, Technology and Transit.”

“This building is very unique,” the lead architect, Michael Green, told the Minneapolis Heritage Preservation Commission earlier this month. “It is the first large-scale office building built of timber in America. It is part of a revitalization of century-old ideas of how to build buildings.”

At the federal level, the U.S. is encouraging the use of sustainable wood products in building. The MinnPost reports that Green says that wood grown sustainably has a smaller carbon footprint than concrete and steel. If this seven-story building were to go forward, it would include a foundation and a first floor made of concrete and steel and six stories of mass timber construction.

As Next City columnist Alexis Stephens reported in “Can Taller Buildings Make Toronto More Affordable?,” the province of Ontario recently relaxed height restrictions on wood-frame construction to encourage residential density.

In Minneapolis, the MinnPost notes, the city has been flexible. Dan Callahan, supervisor of the city of Minneapolis’ plan review section, said he has had several meetings with the T3 team to talk through building code issues. The building would fit under code sections for heavy timber buildings. Callahan said he expects further meetings to get more information and to present the design team with other issues the city has before a formal permit application is received.

From NextCity.org: https://nextcity.org/daily/entry/minneapolis-office-building-wood-plans