Standard Smartply OSB Panels and Sheets. Twenty years later, the industry was thriving, with over 50 mills producing the product. Describes OSB composition, properties, code acceptances, and applications. [9] It has replaced plywood in many environments, especially the North American structural panel market. While it is a widely used acronym, specifically for ocean groups and religious organizations, for our purposes OSB stands for oriented strand board. The APA Product Support Help Desk is a free service available to answer your questions pertaining to the specification and application of engineered wood products and systems. But why is […] The finished sheet size varies by country. Wood strips on the external layers are aligned to the panel's strength axis, while internal layers are perpendicular. Its performance has allowed OSB to gain entry into new markets, Oriented strand board (OSB) is a type of engineered wood similar to particle board, formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. It differs from other wood-scrap products because its long strips of wood are placed strategically rather than randomly. Oriented strand board is manufactured in wide mats from cross-oriented layers of thin, rectangular wooden strips compressed and bonded together with wax and synthetic resin adhesives (95% wood, 5% wax and resin). [1] OSB may have a rough and variegated surface with the individual strips of around 2.5 cm × 15 cm (1.0 by 5.9 inches), lying unevenly across each other, and is produced in a variety of types and thicknesses. These are bonded and arranged in a three-tier structure, with the strands in the outer layers oriented in the same direction as the panel length, and those in the core layer at right angles to it. This website uses cookies to improve your experience while you navigate through the website. Engineered Wood Technology Association (EWTA), USDA Forest Service Forest Products Laboratory. APA trademarks appear only on products manufactured by APA member mills. OSB is beneficial in that it uses small-dimension and waste wood for its fiber; however, resin type should be considered for human health impact, and the production process monitored for air-pollutant emissions. This mat is then cured, trimmed to size We’re not running out of trees. Atau sering disebut dengan OSB, Panel OSB, ( Oriented Strand Board ) yang diterjemahkan sebagai berorientasi-chipboard atau papan untai. The mat is placed in a thermal press to compress the flakes and bond them by heat activation and curing of the resin that has been coated on the flakes. It was invented by Armin Elmendorf in California in 1963. Thickness: 6mm, 8mm, 12mm, 18mm, 21mm. Describes performance standards for structural wood panels and the compositions of different types of APA panels with the Performance Rated designations of APA Rated Sheathing, APA Rated Sturd-I-Floor, and APA Rated Siding. A plywood subfloor generally uses 1/2-inch to 3/4-inch-thick sheets of plywood that have one rough side (which faces down) and one smooth side, which faces up. OSB panels have no internal gaps or voids, and can be water-resistant, although they do require additional membranes to achieve impermeability to water and are not recommended for exterior use. Most of the world's OSB is made in the United States and Canada in large production facilities. It’s like the turkey loaf of building materials. OSB and Plywood Differences. OSB looks a lot like a collage of different wood chips. One-third of the United States … Kronospan’s Oriented Strand Board (OSB) Superfinish ECO offers a wide range of applications for both interior and exterior use. OSB is built by pressing smallers strands of wood together with glue and wax in a hot press. Oriented strand board was created in the late 1970s as inventors extended the use of waferboard. It also describes where Performance Rated panels are used and provides updated trademark and performance category information. Add to basket. Oriented strand lumber (OSL) is a structural material with very consistent properties from one unit to another, and capable of handling large loads. Oriented Strand Board (OSB) is a man-made product created from wood bits, which are pressed and bound together by adhesive resin and glue. Some manufacturers treat the wood chips with various borate compounds that are toxic to termites, wood-boring beetles, molds, and fungi, but not mammals in applied doses. Oriented strand board, commonly called OSB, is a type of particle board which is made of carefully positioned strands of wood. Alibaba.com offers 1,853 oriented strand board uses products. All wood-based structural use panels can be cut and installed with the same types of equipment used with solid wood. In 2001, oriented strand board surpassed plywood in terms of square footage produced. Oriented structural straw board is an engineered board made by splitting straw and formed by adding P-MDI adhesives and then hot compressing layers of straw in specific orientations. It is primarily used as sheathing and underlayment for house construction and remodeling projects. Individual layers can also vary in thickness to give different finished panel thicknesses (typically, a 15 cm (5.9 in) layer will produce a 15 mm (0.59 in) panel thickness[citation needed]). Oriented strand board (OSB) is a type of engineered wood similar to particle board, formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. Weyerhaeuser SDS WC S537-0 2 (M) Page 1 of 11 Rev. When you need to cover large areas quickly and provide a more rigid floor surface, choose “Tongue & Groove” to give an excellent base for tiles, carpet or vinyl. [5] Strand board can also be made from bagasse. APA-trademarked OSB is suitable for a variety of end uses including subflooring, single-layer flooring, wall and roof sheathing, sheathing ceiling/deck, structural insulated panels, webs for wood I-joists, industrial containers, mezzanine decks, and furniture. Like particle board and MDF, OSB comes from wood shavings. Safety Data Sheet (SDS) Weyerhaeuser Oriented Strand Board ( OSB) Products including: Sheathing, Edge ™, The strips are sifted and oriented in belts or wire cauls. Sheathing is the structural covering of plywood or oriented strand board (OSB) that is applied to studs and roof/floor joists and serves as a base for finish flooring or a building's weatherproof exterior. OSL is produced by aligning long strands of wood in parallel and binding them together using adhesives, pressure and heat. Urea-formaldehyde is more toxic and should be avoided in home use. General use Oriented Strand Board (OSB) conditioned for structural applications in humid environments. Sign In Failed. It is primarily used as sheathing and underlayment for … OSB is produced in huge, continuous mats to form a solid panel product of consistent quality with no laps, gaps, or voids. Five grades of OSB are defined in EN 300 in terms of their mechanical performance and relative resistance to moisture:[2], CS1 maint: multiple names: authors list (, "Toronto's Norbord riding the rising wave of OSB sales", "Performance of zinc Borate Treated Oriented Structural Straw Board against Mold Fungi, Decay Fungi, and Termites - A preliminary trial", "Review of the Canadian structural panel market", "Romania has become the largest OSB exporting country in the EU", "UMass Amherst: Building and Construction Technology Â» Choosing Between Oriented Strandboard and Plywood", "Experts Talk About Engineered Wood - Articles", "I'm concerned about toxic offgassing from OSB subflooring and roofing", "Oriented Strand Board Educational Bulletin, Frequently Asked Questions", International Federation of Building and Wood Workers, https://en.wikipedia.org/w/index.php?title=Oriented_strand_board&oldid=995430890, Articles with unsourced statements from June 2012, Articles with unsourced statements from April 2016, Creative Commons Attribution-ShareAlike License, OSB/1 – General-purpose boards and boards for interior fitments (including furniture) for use in dry conditions, OSB/2 – Load-bearing boards for use in dry conditions, OSB/3 – Load-bearing boards for use in humid conditions, OSB/4 – Heavy-duty load-bearing boards for use in humid conditions, This page was last edited on 21 December 2020, at 00:25. Under high temperature and compression, the amalgamate then forms a board shape. The layers are formed by shredding wood into strips. Finished panels are available in large dimensions, minimizing the number of joints that can "leak" heat and admit airborne noise. The design of the oriented strand boardallows using it the same way as plywood. This can be seen by observing the alignment of the surface wood chips. 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. © 2018 - 2020 APA – The Engineered Wood Association. [citation needed], The adhesive resins types used include: urea-formaldehyde (OSB type 1, nonstructural, nonwaterproof); isocyanate-based glue (or PMDI poly-methylene diphenyl diisocyanate based) in inner regions with melamine-urea-formaldehyde or phenol formaldehyde resin glues at surface (OSB type 2, structural, water resistant on face); phenol formaldehyde resin throughout (OSB types 3 and 4, structural, for use in damp and outside environments).[4]. Unlike plywood, which is built up from thin layers of wood veneer, OSB consists of strands of wood. A wide variety of oriented strand board uses options are available to you, The number of layers placed is determined partly by the thickness of the panel, but is limited by the equipment installed at the manufacturing site. Manufactured from waterproof heat-cured adhesives and rectangularly shaped wood strands that are arranged in cross-oriented layers, OSB is an engineered wood panel that shares many of the strength and performance characteristics of plywood. [8] When tested to failure, OSB has a greater load-bearing capacity than milled wood panels. It was invented by Armin Elmendorf in California in 1963. [3] The most common uses are as sheathing in walls, flooring, and roof decking. Plywood usually produces pieces of furniture that are dull-looking unless coated with stain or paint. Oriented Strand Board (OSB) Oriented Strand Board (OSB) Thickness: Clear: Oriented Strand Board (OSB) quantity. Aspen and other similar woods are cut into long strands parallel to the grain of the wood. Oriented Strand Board is a widely used, versatile structural wood panel. It is ideal for exterior wall sheathing, roofing base and floors inside your house. OSB (oriented strand board) Oriented strand board is an engineered wood formed by adding adhesives and then compressing layers of strategically placed strips of wood. TallerDE2 Architects uses engineered wood to create adaptable Madrid apartment. Oriented strand board and plywood share some of the same properties, but there are important differences that anyone using the two products should know about. The resins used to create OSB have raised questions regarding the potential for OSB to emit volatile organic compounds such as formaldehyde. Board Size: 2440mm x 1220mm. The sheets are generally 4 x 8 or 4 x 12 feet in size. We all know that Plywood is one of the best materials to be used for indoor construction purposes, personal projects, facing veneers of a different material, making furniture more resistant to damage and moisture, and so on. The mat is formed in a forming line. Individual panels are then cut from the mats into finished sizes. While OSB does not have a continuous grain like a natural wood, it does have an axis along which its strength is greatest. That's … The edges of OSB will dramatically expand (>15%) when wet, and takes much longer to return to normal size. SKU: 1237973# Category: Plywood. It uses less wood to make more wood products. Adjustments to the manufacturing process can affect thickness, panel size, strength, and rigidity. The result is a solid panel with no core gaps that will not delaminate under normal use. The mark signifies that panel quality is subject to verification through APA audit—a procedure designed to assure manufacture in conformance with APA performance standards or the standard shown in the mark. These layers are bonded using wax and resin. Oriented Strand Board is a widely used, versatile structural wood panel. Blends practical and creative elements together for a variety of uses in residential and nonresidential applications is built from. 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