Wood construction

It’s Time We Treat Some Forests Like Crops
Marc Peruzzi Sep 11, 2019 in https://www.outsideonline.com/ “Believers in Mass Timber say smaller trees are the ultimate renewable construction material, but only if we learn to be smarter farmers and builders

Revolutionary Carbon Foam from Wood
by Shannon Kelleher and Tom Moreland, USDA Forest Service, oct 18, 2018. “Carbon foam — a stiff, porous structure formed from a web of carbon atoms — is the stuff of manufacturers’ dreams. The breakthrough material is strong but lightweight, non-flammable and able to maintain its performance at high temperatures, and capable of absorbing sound and radiation. This unique combination of traits means carbon foam is brimming with potential applications across military, aerospace, and commercial industries. It is ideal for aircraft and ship insulation, wall panels, stealth technology (to avoid radar detection) and more….Scientists at the USDA Forest Service’s Forest Products Lab and Ligsteel LLC are working with Domtar, Inc to develop high-value carbon foam from lignin…The Forest Service has already filed an application for a patent on the novel carbon foam in Canada, where Domtar has a large paper mill, and in China, which is also known for its large-scale paper mill operations.”

New dowel laminated timber product to be used for structural applications
http://journalofcommerce.com/ Mar 27, 2017
StructureCraft Builders Corporation is building a 50,000-square-foot, all-wood facility in Abbotsford, B.C. to manufacture dowel laminated timber (DLT). DLT is made entirely from softwood and hardwood with no metal, glue or plastic….Today there are about 20 DLT manufacturers in Europe, most of them in Germany, Austria and Switzerland. DLT may be the most recent mass timber product, but it joins many others already on the market. Some of them are nail laminated timber (NLT), cross laminated timber (CLT), glue laminated timber (GLT), laminated veneer lumber and laminated strand lumber.

Forest products and applications
Natural Resources Canada

Wood Construction
Archived posts on this website

Explainer: everything you need to know about mass timber
The Fifth Estate, June 29, 2017.

Did wooden construction feed Dorchester fire?
Boston Globe June 28, 2017

Officials: Use of laminated lumber caused Ottawa County deck collapse
ox17online.com, June 28, 2017

by www.masstimberinstitute.ca

Window of opportunity
Article in LighthouseNow by Gayle Wilson Oct 11, 2017.
It’s about Amos Wood of Blockhouse who got a contract to replace six windows for the historical St. Mary’s Basilica in Halifax.

The windows will be constructed out of Sapele Mahogany, a hardwood from sub-tropical Africa. “Unfortunately,” says Amos of the material. “But it was less expensive than our Western Red Cedar, which would have been a good material to use, but cost ruled the day.” While the original windows were made of pine, Amos maintains that the pine available on the market today is “so young. “It simply doesn’t have the resistance factor that the slower growing, older wood from time ago had.” According to Amos, the forests are now working on a 60- to 80-year rotation, “which cannot give us 200-year-old wood.”

and this comment followed:

A poorer grade pine will grow up on the southwestern clearcuts, and will not be prized for the purposes this article addresses. Mills had best enjoy their “clear pine” while they still can. We know what the open grown pine looks like, full of knots and larger growth rings; generally poorer grade, and often hit by weevil, which ultimately reduces board footage. There will be far less quality pine grown from this point onward unless on private land by wise and more caring landowners. Current Crown land practices won’t grow quality pine unless by accident.

Nanollose makes first garment from tree-free rayon
by Hannah Abdullah on just-style.com, Nov 1, 2018