We form the layers by shredding wood and then joining them together with adhesive. A few facts about wood. OSB is a material with favorable mechanical properties that make it particularly suitable for load-bearing applications in construction. [6] In 2014, Romania became the largest OSB exporting country in Europe, with 28% of the exports going to Russia and 16% to Ukraine.[7]. The finished product has properties similar to plywood, but is uniform and cheaper. Urea-formaldehyde is more toxic and should be avoided in home use. [10] Industry trade groups assert that formaldehyde emissions from North American OSB are "negligible or nonexistent".[11]. It is manufactured into sheets made up of wood strands, wax, and resin adhesives.Sheets are formed under pressure and heat. It was invented by Armin Elmendorf in California in 1963. Oriented Strand Board is a widely used, versatile structural wood panel. [5] Strand board can also be made from bagasse. Oriented strand board (OSB) The fabrication, uses, performance and sustainability of oriented strand board (OSB). Oriented strand board, or OSB, is a type of lumber that shares many properties with plywood or fiberboard.While other types of wood sheeting typically feature a smooth surface, this type features a rough surface made up of hundreds of wood chips.While these scraps of wood may appear randomly placed, each piece of wood is actually aligned to maximize the strength of the panel. Most of the world's OSB is made in the United States and Canada in large production facilities. Describes OSB composition, properties, code acceptances, and applications. Standard Smartply OSB Panels and Sheets. 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. [2] It is now more popular than plywood, commanding 66% of the structural panel market. In 2001, oriented strand board surpassed plywood in terms of square footage produced. It uses less wood to make more wood products. APA trademarks appear only on products manufactured by APA member mills. However, pieces of furniture built using OSB do not require any staining or painting because the design of the board itself can stand alone. While it is a widely used acronym, specifically for ocean groups and religious organizations, for our purposes OSB stands for oriented strand board. However, with OSB, the layers are more cross-oriented. 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. 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. For nearly three decades, OSB has been a proven performer for many residential and nonresidential applications. Relative to their strength, OSB panels are light in weight and easy to handle and install. The finished sheet size varies by country. It was invented by Armin Elmendorf in California in 1963. OSB's combination of wood and adhesives creates a strong, dimensionally stable panel that resists deflection, delamination, and warping; likewise, panels resist racking and shape distortion when subjected to demanding wind and seismic conditions. Like particle board and MDF, OSB comes from wood shavings. This humble stuff is mostly used as a substrate during construction projects, leaving other materials to bask in the spotlight. All Rights Reserved. OSB is now used for about 70 percent of all floor, wall and roof sheathing in North America. 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. OSB is also used in furniture production. It’s like the turkey loaf of building materials. 08/27/2018 . 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. Wood strips on the external layers are aligned to the panel's strength axis, while internal layers are perpendicular. Oriented strand board was created in the late 1970s as inventors extended the use of waferboard. [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]. 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. Phenol-formaldehyde products are considered to be relatively hazard-free. This mat is then cured, trimmed to size [9] It has replaced plywood in many environments, especially the North American structural panel market. Therefore, it can also be used to build pieces of furniture such as tables, shelves, and cabinets. The board is manufactured from wood flakes, which are dried and blended with resin and wax and pressed into a mat. Laminated veneer lumber (LVL) is an engineered wood product that uses multiple layers of thin wood assembled with adhesives.It is typically used for headers, beams, rimboard, and edge-forming material.LVL offers several advantages over typical milled lumber: Made in a factory under controlled specifications, it is stronger, straighter, and more uniform. The edges of OSB will dramatically expand (>15%) when wet, and takes much longer to return to normal size. Oriented Strand Board: Opportunities and Potential Products in China. Sheathing is considered to be the second most wood-intensive element of wood-frame construction. This can be seen by observing the alignment of the surface wood chips. It differs from other wood-scrap products because its long strips of wood are placed strategically rather than randomly. Although oriented stranded board (OSB) has similar uses to plywood, it has a much coarser finish. What is it, you ask? The mat is formed in a forming line. Its performance has allowed OSB to gain entry into new markets, Unlike it’s plywood counterpart, OSB lacks the forces that tend the wood to warp, and so is easier to get perfect dimensions and avoid warping tendencies.The one major disadvantage of OSB is its propensity to expand with moisture. It is primarily used as sheathing and underlayment for house construction and remodeling projects. … Juwan Jin, a,b Siguo Chen, b and Robert Wellwood c, * North America’s first oriented strand board (OSB) mill was built in the early 1980’s. Add to quote. 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. Board Size: 2440mm x 1220mm. Or use “Square Edge”… [3] The most common uses are as sheathing in walls, flooring, and roof decking. The mat is made in a forming line. 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. 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. OSB uses the wood from trees that grow quickly and sustainably. Adjustments to the manufacturing process can affect thickness, panel size, strength, and rigidity. OSB is engineered for strength and designed for a variety of applications. Safety Data Sheet (SDS) Weyerhaeuser Oriented Strand Board ( OSB) Products including: Sheathing, Edge ™, Oriented strand board (OSB) is a completely different material from the previous two mentioned. sheathing, oriented strand board (OSB) is helping to shape how the world builds. Weyerhaeuser SDS WC S537-0 2 (M) Page 1 of 11 Rev. OSB Basics The layers can vary in thickness to give different finished products.Plywood is made from good log called peelers. 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. OSB looks a lot like a collage of different wood chips. It also describes where Performance Rated panels are used and provides updated trademark and performance category information. We’re not running out of trees. Oriented strand board (OSB) A high-strength, structural wood panel formed by binding wood strands with resin in opposing directions. Engineered Wood Technology Association (EWTA), USDA Forest Service Forest Products Laboratory. If you’ve been around long enough, you’ve seen plywood go from being the top structural panel in the industry to becoming an also-ran that's now second to oriented strand board … The resins used to create OSB have raised questions regarding the potential for OSB to emit volatile organic compounds such as formaldehyde. These layers are bonded using wax and resin. 4' x 8', 4' x 9', 4' x 10'; manufactured in 8' X 24' or larger panels which can be custom-cut by most manufacturers. The leading resource for information about engineered wood products. [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. That’s why using APA trademarked plywood, oriented strand board and APA EWS glued laminated timbers is the right thing to do. 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). Thickness: 6mm, 8mm, 12mm, 18mm, 21mm. OSL is produced by aligning long strands of wood in parallel and binding them together using adhesives, pressure and heat. The design of the oriented strand boardallows using it the same way as plywood. The strips are sifted and oriented in belts or wire cauls. Strandboard is a high-density substrate, which blends practical and creative elements together for a variety of uses in residential and commercial applications. Materials other than wood have been used to produce products similar to OSB. PR-N136: Georgia-Pacific Wood Products LLC, ESR-2586: APA – The Engineered Wood Association. One-third of the United States … 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. While OSB does not have a continuous grain like a natural wood, it does have an axis along which its strength is greatest. 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. 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. Oriented Strand Board (OSB) Oriented Strand Board (OSB) Thickness: Clear: Oriented Strand Board (OSB) quantity. © 2018 - 2020 APA – The Engineered Wood Association. 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]). Plywood vs. OSB (Oriented Strand Board): Major Differences . The layers are created by shredding the wood into strips, which are sifted and then oriented on a belt or wire cauls. Twenty years later, the industry was thriving, with over 50 mills producing the product. It is primarily used as sheathing and underlayment for … But why is […] 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. Additional information Additional information. Oriented strand board (OSB) is an engineered wood-based panel. 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. The layers are formed by shredding wood into strips. (Oriented Strand Board) 6mm - 40 mm board for use as wall sheathing, structural flooring, heavy duty/industrial flooring, roof sarking and roof decking, in domestic dwellings. OSB and Plywood Differences. That's … 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 … Unlike plywood, which is built up from thin layers of wood veneer, OSB consists of strands of wood. Alibaba.com offers 1,853 oriented strand board uses products. Oriented Strand Board is a widely used, versatile structural wood panel. Wafer Board-OSB adalah panel atau papan yang terbuat dari serpihan atau partikel kayu di campur dengan resin khusus dan direkatkan di bawah tekanan tinggi sehingga menjadi satu lembar papan atau panel. Some newer types of OSB, so-called "new-generation" OSB panels, use isocyanate resins that do not contain formaldehyde and are considered nonvolatile when cured. In 2005, Canadian production was 10,500,000 m2 (113,000,000 sq ft) (3⁄8 in or 9.53 mm basis) of which 8,780,000 m2 (94,500,000 sq ft) (3⁄8 in or 9.53 mm) were exported, almost entirely to the United States. SKU: 1237973# Category: Plywood. All wood-based structural use panels can be cut and installed with the same types of equipment used with solid wood. 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. Sign In Failed. It is ideal for exterior wall sheathing, roofing base and floors inside your house. Oriented strand board, commonly called OSB, is a type of particle board which is made of carefully positioned strands of wood. Oriented Strand Board (OSB) is a man-made product created from wood bits, which are pressed and bound together by adhesive resin and glue. Building codes, the Engineered Wood Association, architects and most builders rate plywood and oriented strand board (OBS sheathing) equal in strength and durability. 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. 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. 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. 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. Are you looking for the reasons why OSB is leaving behind Plywood for construction purposes? Oriented strand board (OSB) is a completely different material than the previous two mentioned. 5/16, 3/8, 15/32, 1/2, 19/32, 5/8, 23/32, 3/4, 7/8, 1, 1-1/8. TallerDE2 Architects uses engineered wood to create adaptable Madrid apartment. 5 ] Strand board was created in the late 1970s as inventors the... Is ideal for exterior wall sheathing, roofing base and floors inside your.... Available in large dimensions, minimizing the number of joints that can `` leak '' and... 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