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Oriented strand board (OSB) is a type of engineered wood, formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. It was invented by Armin Elmendorf in California in 1963. [ 1 ]
Standard OSB with EPS-core structural insulated panel Although foam-core panels gained attention in the 1970s, the idea of using stress-skinned panels for construction began in the 1930s. Research and testing of the technology was done primarily by Forest Products Laboratory (FPL) in Madison, Wisconsin , as part of a U.S. Forest Service attempt ...
But the company has said it still intends to reopen the 130-worker Clarke County mill, which can make more than 700 million square feet a year of OSB at full capacity. [21] In 2004, the company began producing LP FlameBlock Fire-Rated OSB Sheathing, an ICC certified (ESR-1365), PS2-rated structural sheathing with a Class A Flame Spread Rating.
Plywood and OSB typically have a density of 560–640 kg/m 3 (35–40 lb/cu ft). For example, 9.5 mm (3 ⁄ 8 in) plywood sheathing or OSB sheathing typically has a surface density of 4.9–5.9 kg/m 2 (1–1.2 lb/sq ft). [51] Many other engineered woods have densities much higher than OSB.
The fixed rate for a 15-year mortgage is 6.12%, down 4 basis points from last week's average 6.16%. These figures are higher than a year ago, when rates averaged 6.63% for a 30-year term and 5.94% ...
The $7.992 billion mistake raises questions about DOGE's accounting and savings claims as it works ... grants and real estate leases on the "wall of receipts" page amounted to about $16.5 billion ...