by Web Editor | Mar 13, 2017 | News
Building a house, garage or even a shed today isn’t as easy as going to the local lumberyard and buying whatever dimension of wood you need. A lot of emphasis goes into the grade of the wood and its stress and load ratings, according to Everett Brands, manager of Arrow Building Center in Glencoe. Arrow took over the former Fullerton Lumber Center on Desoto Avenue this past October.
Today, main structural pieces, such as headers, consist of LVL, or laminated veneer lumber, an engineered product typically of poplar, fir or pine. It is laminated under heat and pressure with a moisture-resistant resin and it’s stronger than typical native wood. Building codes call for the use of specific lumber grades for specific applications.
“Anything longer than six feet as a header has to be LVL,” Brands said. The LVL products range up to 36 or 48 feet long. While regular lumber could sag or bow under extreme weight, the LVL won’t. Thus LVL is typically used over windows and entries, especially with tall entries.
“We use a lot of engineered products — beams, headers and I-joists,” added Matt Smieja, manager of Simonson Lumber, just outside Hutchinson along State Highway 7 East.
Years ago, when forests were being cut for the first time, the wood tended to be of higher quality as far as grain and knots. But new stands of trees generated are of a lower grade.
From the Hutchinson Leader: https://www.crowrivermedia.com/hutchinsonleader/news/business/engineered-lumber-has-replaced-natural-lumber-in-most-key-building/article_67ee0dc7-e4d8-56c8-932e-9ca668bb40bc.html
by Web Editor | Oct 12, 2016 | News
From: Panel World Staff
A report conducted by Forest Economic Advisors and released by Composite Panel Association says that in 2015, the total (direct, indirect and induced) impacts of U.S. CPA-member composite panel manufacturing on the U.S. economy were $7.05 billion in output, employment of more than 22,500 and wages of $1.45 billion. The Canadian composite mills’ impact on the Canadian economy were $3.41 billion (Can), employment of almost 11,500 and $724 (Can) in wages.
“Economic Impact of U.S. and Canadian Composite Panel Mills” also reveals that in 2015 37 U.S. CPA-member mills had sales of $2.30 billion and 12 Canadian mills had sales of $1.34 billion (Can).
The report estimates that U.S. and Canadian composite panel facilities consumed 8.3 million dry tons of residual fiber in 2015, out of total residual supply of 76 million dry tons. On a regional basis, composite panel mills in the U.S. South consumed the most wood fiber, accounting for 2.8 million dry tons, 34% of the total in 2015.
Other findings:
— Resin costs account for 30% of composite panel production costs.
— Energy costs account for 10-20% of costs.
— Value-added shipments accounted for 31% of North American particleboard ships in 2014 and 18% of MDF shipments. For particleboard, the biggest value-added product was thermally fused laminate panels, accounting for 66% of value-added particleboard shipments.
— In 2015, the 42 composite panel mills operating in the U.S. and 12 in Canada had total capacity of 8.15 billion SF (five of these U.S. mills were not CPA members).
— In 2015, North American composite panel shipments hit 5.97 billion SF, 31% below the pre-recession mark of 8.64 billion SF, but a gradual improvement over 5.23 billion SF in 2009.
Read more in the November issue of Panel World magazine…
by Web Editor | May 27, 2015 | News
B.C. OSB Mill Given Green Light On MDI
Despite local opposition, Peace Valley Oriented Strand Board (OSB) in Fort St. John has been granted an amendment to its Environmental Certificate to allow the use of a controversial chemical in its manufacturing process. The plant is currently only permitted to use phenol formaldehyde resin as an adhesive — a condition on its original certificate.
The Louisiana-Pacific Ltd. (LP) plant applied for the amendment to use methylene diphenyl diisocyanate, or MDI, at its factory for the production of its particleboard items in spring 2014. Before that, it had applied to the Ministry of the Environment for an amendment to its Discharge Authorization Permit to use MDI at the plant in late fall 2012.
MDI would be incorporated as a resin into the core of the oriented strand board before it undergoes the pressing process. During that process, MDI would be discharged from the press vent stack.
The news of the certificate’s amendment was met with disdain from at least one Baldonnel resident, Sandra Cushway, whose 2013 Freedom of Information request revealed “hundreds of pages” of non-compliance to environmental regulations with Peace Valley OSB.
Peace Valley OSB is now following up on its discharge permit from the Ministry of Environment to have it altered to include MDI emissions.
From Alaska Highway News: alaskahighwaynews.ca.
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