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LVL is typically rated by the manufacturer for elastic modulus and allowable bending stress. Common elastic moduli are 12, 13 and 14 GPa (1,700,000, 1,900,000 and 2,000,000 psi), and common allowable bending stress values are 19 and 21 MPa (2,800 and 3,000 psi).
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. According to the ICC Evaluation Service (ICC-ES), it provides extended burn-through resistance, delivering a 15-minute thermal barrier (ASTM E119). It is durable on the job ...
The most common uses are as sheathing in walls, flooring, and roof decking. For exterior wall applications, panels are available with a radiant-barrier layer laminated to one side; this eases installation and increases energy performance of the building envelope. OSB is also used in furniture production.
Large self-supporting wooden roof built for Expo 2000 in Hanover, Germany. Engineered wood, also called mass timber, composite wood, man-made wood, or manufactured board, includes a range of derivative wood products which are manufactured by binding or fixing the strands, particles, fibres, or veneers or boards of wood, together with adhesives, or other methods of fixation [1] to form ...
APA – The Engineered Wood Association is the nonprofit trade association of the U.S. and Canadian engineered wood products industry. Based in Tacoma, Washington, the Association is composed of and represents manufacturers of structural plywood, oriented strand board (OSB), cross-laminated timber, glued laminated (glulam) timber, wood I-joists, laminated veneer lumber (LVL) and other ...
One can thus presume that rotary lathe plywood manufacturing was an established process in France in the 1860s. Plywood was introduced into the United States in 1865 [7] and industrial production there started shortly after. In 1928, the first standard-sized 4 ft by 8 ft (1.22 m by 2.44 m) plywood sheets were introduced in the United States for ...
[16] The most commonly used insulation type in AC electrical distribution systems throughout North America is THHN ("Thermoplastic High Heat-resistant Nylon-coated" [17]). This is a specification for PVC insulation (other thermoplastics are permitted, but rarely used) with a nylon jacket for abrasion resistance. THHN is suitable for dry or damp ...
Plenum-rated and riser-rated cables are restricted to only allow certain chemicals for manufacture of the wire insulation and cable sheath. Typically this results in reduced flexibility of plastic cables, making it stiff and hard to bend. The bend radius may also be increased, and tight bends can potentially crack or tear the insulation and ...