These cookies will be stored in your browser only with your consent. Common thicknesses for sheathing panels are: 5/16 inch (7.9 mm), 3/8 inch (9.5 mm), 7/16 inch (11.1 mm), 15/32 inch (11.9 mm), 1/2 inch (12.7 mm), 19/32 inch (15.1 mm), 5/8 inch (15.9 mm), 23/32 inch (18.2 mm), and 3/4 inch (19.0 mm). The advantages of Structural I Rated Sheathing over standard Rated Sheathing panels of the same Performance Category are realized in certain specialized engineered applications such as engineered shear walls and engineered horizontal diaphragms. &o_a-~K9SY These layers are combined to form OSB panels of the desired panel thickness. Another type of classification is conditioned by type of glue used joining wood chips. OSB-3 and OSB-4 are the ones with the greatest possibilities you will find. Stability and strength you can count on. Exposure 1 : OSB suitable for uses not permanently exposed to the weather. 1000 Independence Ave. SWWashington DC 20585. Settings Open the Settings menu to access different options for your chart. H|U0+:-P6Ul Xx<>>o~e-8, i d !A6s7o@;,-o?g 6 0E3eD$#pe&S0M&\F,{1+_D2x!d1l\R'g y@{9gkXexJeOi2r@k#+-_+53x3U>PdG\5Rh3$a(&MT Blue Ribbon OSB sheathing panels contain no core voids, knots or splits and provide a quality base layer for wall and roof sheathing applications. Products shown . Prescriptive methods for retrofitting gables 4 ft tall and taller are detailed in the gable end wall bracing retrofit section of the IBHS High Wind Standard and are consistent with methods included in an appendix to the International Existing Building Code (ICC 2018). Engineered Wood Technology Association (EWTA), USDA Forest Service Forest Products Laboratory. 0 v SYMBOL Tab Bar Type: For th selected Bar Type, you may customize the color and thickness of the bars. (Source: APA Builder Tip U450: Storage and Handling of APA Trademarked Panels). @t)@+@YC*MAsEC o YP2$*$i4B;I{./+_tte B::BonU!_!_7sf |1$>W|z! *f}hgXn/mOQ ezK]]g7Ye5iX}~[Eu;e@n&&x5?T[]?=>)o.vp9d)m1Qa].sq? rr L6h#X Longitudinal: 0.03 0.02%. osb thickness color chart. OHLC Bars are drawn to show the open-high-low-close. Right Hurricane strapping attaches every roof truss to a wall stud. See IRC Table R602.3(3)belowfor minimum wood structural panel span length, thickness, nail size, nail spacing, nail penetration, and stud spacing for the various wind exposure categories. The 250 125 cm and 18 mm thick OSB / 3 costs 25-30. Next, determine the OSB width. You can use 7/16-inch thick OSB sheets without support for areas where the snow load is 30 pounds per square foot because it's durable and maintains building integrity much longer than other sizes. This is a remarkable problem, since it is a table top with a rough and sloppy appearance, which was intended for structural and not decorative uses. Features. You must have JavaScript enabled to use this form. Your email address will not be published. The hardwood veneers improve strength, stability, and impact-resistance. They can be attacked by xylophagous fungi and also by some insects such as termites in certain particularly favorable environments. Its also used in furniture making and shipping crates and as a more economical and flexible alternative to plywood applications. Y(|V$V&>wICCK}IAcZbm+@b9=#S4w>`Rh|BXx1{&UhkkXG@8qNf@fFRPQ(x2a0 #gopO*Pv4,\!KW9p]VP>d&"7D4OQ"wU]~Hbr5NSbJW.Uc}9)"+, Comprehensive tables showing the weights of various materials and other important metrics like thickness, thermal expansion, and R-value. More Photos Features Standard FRP. OSB makes efficient use of forest resources, by employing less valuable, fast-growing species. In the interior OSB panel layer or "core layer" strands are oriented either randomly or across the short axis of the OSB panel. Other products have corrugated side protectors that should indicate piece count. Building experts consider oriented strandboard (OSB) and plywood to be equally effective as wall sheathing, roof decking and floor underlayment. During a hurricane, tornado, or high winds, wall systems can succumb to structural failures and water damage due to exposed sheathing, Unsealed joints or penetrations in the wall structural sheathing or storm damage can allow rainwater to enter the building, causing severe damage, including saturation of insulation and drywall, potentially leading to extensive damage to sheathing, flooring, interior finishes, and household contents. It is a very common and common product, at least in North America and Europe. Pressure-treated plywood is heavier than other plywoods even after drying out from the pressure-treating process. Gable ends must have structural wall sheathing (minimum of 3/8-in. After the trees are harvested, the logs are washed and debarked before being fed into a flaking machine that turns the wood into strands. What is not so common anymore is that all types of OSB are available from stock. Varying applications, end uses, and expectations require different metal panel alternatives. Its mostly so they can sort the different thicknesses and materials, at the warehouse and at the store. Cross-laminated timber (CLT) is a large-scale, prefabricated, solid engineered wood panel. So in the above scenario, the hinge side would be blue. Marine plywood is manufactured using specially formulated water-resistant adhesive and very dense, high-quality outer plies. The leading resource for information about engineered wood products. Mr. Gray has over 25 years of experience in the roofing industry, with training and practical experience in roof safety, roof inspection, roof condition assessment, estimating, roof design & specification, roof installation, quality assurance, roof maintenance & repair, and roof asset management. Section R602.10 of the IRC provides prescriptive construction details and requirements for braced wall lines and braced wall panels for buildings exposed to different wind speeds. Jeff_Clarke | Aug 10, 2008 04:49pm | #18. Oriented Strand Board (OSB) is a widely used, versatile structural wood panel. Building codes in some areas require that the best OSB for walls is 1/2 inch thick if stucco will be applied. It usually means different thickness but different manufacturers use different colors, its probably blue..or yellowright ..it notes the thickness of product..blue = 7/16 yellow = i think 1/2 red= 5/8, Your email address will not be published. OSB has a rough texture that remains obvious even when its sanded and painted. This website uses cookies to improve your experience while you navigate through the website. B. absorbs, https://fornoob.com/use-eulers-formula-to-find-the-missing-n. Thickness. For most standard floor and wall installations. There are three levels of Fortified Home: Fortified Roof focuses on the roof; Fortified Silver focuses on roof overhangs, opening protection, gable ends, and attached structures; Fortified Gold focuses on tying all components of the structure together. Relative to their strength, OSB panels are light in weight and easy to handle and install. South Loop Store. The grade stamp on a panel also tells you a lot about the panel the span rating, exposure rating, panel thickness and the building code approval the panel meets. Minimum: 7/16 thickness. If the door opens into the living room then the side and top edge adjacent to the door handle will be green the same as the living room side. Difficulty in getting a really smooth finish. The hinge side of the door AND just the narrow/singluar strip of door frame the hinges are set in will always be painted the opposite . Safety is the first order to consider with any project. 4' x 9' panels available in select colors. The mark signifies that panel quality is subject to verification through APA audita procedure designed to assure manufacture in conformance with APA performance standards or the standard shown in the mark. Right The coated OSB sheathing can take the place of house wrap to serve as the weather-resistant barrier because it is sealed at the seams with a paint-on flashing. This puts less pressure on forest resources, that is, greater use is made of the tree. OSB is slightly heavier than plywood, but the added weight doesnt mean added strength nor does it make OSB less structurally sound. See the anchor brackets and straps used as connectors in Figure 2. Overview of Normal Minimum Thicknesses for Different Uses: 9 + 10mm: packaging, protective panelling, furniture The recommended minimum thickness of OSB panels for timber-frame walls is 12mm when the cells in the supporting frame measure up to 62.5cm on a side, and 15mm for frame members spaced up to 83.3cm apart. A typical 4 x 8sheetof 1/2-inchOSB weighsaround 54 lbs. First, determine the OSB length. Required fields are marked *. For disaster resistance, comply with the requirements defined by Fortified Home (Fortified Technical Resources). Its manufacturing process can be considered more environmentally friendly or responsible than the manufacture of plywood. Resistance limited to moisture, especially when compared to phenolic plywood. Max-Rib is a low profile (3/4-inch) panel that is equally well suited for residential roofing and post frame applications. Please contact our webmaster if you find broken links. This type of board surpassed the defined use during its conception and became one of the most versatile options. However, they are immune to insects in the larval cycle, such as woodworm. Installing either sheathing over a 500 square foot area would cost roughly $160 in material for plywood and $100 for OSB. Contractors! Gable end wall bracing is also a requirement for the silver designation in theFortified Home program conducted by the Insurance Institute for Business and Home Safety (IBHS) offers guidance, best practices, and voluntary construction standards and programs for building in disaster-prone areas including hurricane and high-wind zones. R602.10.2.1 Braced wall panel uplift load paths. Sign In Failed. Finishes, paints and / or varnishes can be sanded and applied, both water-based and solvent-based. Case study, Hard and Soft Woods: List and classification methods, Paulownia or Kiri Wood. OSB is made up of various chips of wood from different species of trees in a combination that will meet the WWPA structural specs. In this example, the length is 30 inches. It is also called LDF (low density fiberboard). Section R602 of the 2018 IRC specifies minimum wall-sheathing thickness and fastening requirements for structural panels. MDF: Medium Density Fiberboard is produced from wood scraps left over from other wood product manufacturing activities. Learn more about how LP OSB Sheathing is made. OSB wall sheathing comes in thicknesses ranging from 1/4 inch to 1 1/8 inch, but some of those dimensions are hard to find. The IRC defines Hurricane-Prone Regions as areas along the Atlantic and Gulf Coasts where wind velocity is >115 mph, and Hawaii, Puerto Rico, Guam, the Virgin Islands, and American Samoa (see the IRC wind map in the Climate tab). The APA publications desk number is 1-253-565-6600 and their extensive literature is available at apawood.org. The IBHS Fortified Home standard is designed to make homes more resilient and durable; guidance is available for New Construction and Existing Homes in Hurricane zones and High-Wind zones. Because of the manufacturing process, OSB is less costly and more environmentally sound than plywood. OSB-2. Minimum Thickness. Sized for spacing (Panel width and length may vary up to 1/8" to aid with proper installation) Exposure 1 rated panel can withstand inclement weather during construction delays but it is not . A typical 4 x 8 sheet of 1/2-inch MDO weighsaround 48 lbs. wood structural panels on both wall faces. Nail holes were also left unplugged. The recommended minimum thickness of OSB panels for timber-frame walls is 12mm when the cells in the supporting frame measure up to 62.5cm on a side, and 15mm for frame members spaced up to 83.3cm apart. You can create a free listing in our brand new Contractor Directory!if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'roofonline_com-large-leaderboard-1','ezslot_9',124,'0','0'])};__ez_fad_position('div-gpt-ad-roofonline_com-large-leaderboard-1-0');report this ad. Structural wood sheathing shall be nailed to the rim board if present with 8d ring shank or 10d nails at 4 inches on center along both the top and bottom edges of the rim board. Since adhesive resins and sealants are much heavier than wood, this means that wood products that use a lot of them will be heavier than wood products that use less of them. It is heavier than the plywood. ENERGY EFFICIENCY AND RENEWABLE ENERGY, Forrestal Building For heavier loads - a 40/20 rated panel (19/ . OSB is produced in huge, continuous mats to form a solid panel product of consistent quality with no laps, gaps, or voids. It is due to its rough surface. 0.315 in. Buy 68 or more $9.45. They may include steel connection plates or straps. The answer may seem ambiguous. Still standing proud. Additional information may be found in specific LP product literature and in literature from the APA, whose stamp of quality appears on LP OSB products. 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Never leave panels or the platform in direct contact with the ground. 2023 Georgia-Pacific Gypsum LLC and Georgia-Pacific Wood Products LLC. Sometimes, also species with leaves, like poplar or even eucalyptus. This is easily distinguished by the size of the chips (larger than any other type of board) and rough texture. OSB can be painted with an oil-based paint. Nailing of wall sheathing shall be increased to 8d ring shank or 10d nails on 4 inches on center along the edges and 6 inches on center in the field. OSB built for load-bearing strength in construction. Note: Gable ends that are not covered in this retrofit guidance include: Access to some references may require purchase from the publisher. plywood or OSB or 3/4-in. Source (s): Work at The Home Depot, Lets Build Something Together. The final manufacturing step is pressure and heat curing. Supports large and heavy tile for flat, even installations. Here are standard thicknesses and their costs per sheet: 1/4-inch: $32-$37 7/16-inch: $34-$51 1/2 inch: $34-$51 23/32-inch: $50-$56 3/4-inch: $58-$77 OSB Cost Breakdown Finished panels are available in large dimensions, minimizing the number of joints that can "leak" heat and admit airborne noise. The width is measured to be 20 inches. Minimum of 3/8-in. Inch Calculator 14k followers More information graphic showing various types of plywood and their actual thickness Woodworking Plans Beginner Woodworking Techniques t = 0.594 0.625 0.719 0.750 0.875 1.000 1.125 Area (in.2/ft) A = 7.125 7.500 8.625 9.000 10.500 12.000 13.500 We set our own Everyday Low Prices as well as sale prices, but some manufacturers restrict how retailers display that pricing. It is also a variable that is directly related to the wood species used in its manufacture. Construction of stands for fairs and exhibitions. %PDF-1.6 % Sized for spacing (Panel width and length may vary up to 1/8" to aid with proper installation) Nominal size. Recall Information: Decking | Press Releases. It has high mechanical resistance, is light and meets the NIMF-15 standard. Code language is excerpted and summarized below. 5/16, 3/8, 15/32, 1/2, 19/32, 5/8, 23/32, 3/4, 7/8, 1, 1-1/8. Traditional Hard Coat stucco is the most common type of stucco cladding used in the United States, it is applied in 3 layers over metal lath: Scratch coat 3/8 inch Brown coat 3/8 inch Finish coat 1/8 inch IBHS Requirement for Compliance for Existing Homes. These methods are intended for applications where the gable end wall framing is provided by a wood gable end truss or a conventionally framed rafter system. MDO: Medium Density Overlay is a type of exterior plywood specifically designed to be painted easily. He was awarded the Registered Roof Observer (RRO) professional credential in 2009. Industrial packaging. Actual Width. Because plywood is made of veneers that are glued and pressed together, unlike OSB, its more attractive and can be used for finish work. This is defined by the glues or adhesives used to manufacture the card. Three panel thicknesses with various dimensional options let you choose the right panel for each design and application. Additions, alterations, renovations, or repairs shall conform to the provisions of this code, without requiring the unaltered portions of the existing building to comply with the requirements of this code, unless otherwise stated. My house was built for the government in WWII. For the OSB to be considered what it is and to have the properties it should be, chips of sufficient size must be used. Overall, the average density was above the target density for all board types, except for the OSB 11 mm thickness. You did not provide a valid email address. TheAPA Product Support Help Deskis a free serviceavailableto answer your questions pertaining to the specification and application of engineered wood products and systems. Particle Board: The product generally known as particle board is similar to MDF. For instance, while plywood is typically 90% to 95% wood, OSB might only contain 80% wood. The lowest density, 566 kg/m 3, was obtained for OSB/3 at 22 mm thickness, which had a lower compaction ratio compared to OSB/2 and OSB/1. endstream endobj 15 0 obj <>stream Table R602.3(3) Requirements for Wood Structural Panel Wall Sheathing Used to Resist Wind Pressures. The rating stamps for plywood and oriented strand board (OSB) lumber are provided. Although plywood panel prices have substantially increased over the past 18 months as well, the increases have been less than half those seen in the OSB market. We also use third-party cookies that help us analyze and understand how you use this website. It was invented by Armin Elmendorf in California in 1963. But OSB is not suitable for long-term exposure to the weather. It also describes where Performance Rated panels are used and provides updated trademark and performance category information. MDF does not handle moisture well, and is normally only used for interior applications, such as flooring or furniture. With integrated structural, water and air management layers, ZIP System products offer interchangeable options for optimal roof and wall performance. Plywood dries more quickly than OSB. Similar to solid wood. (Source: Boxes, Crate and Reel Manufacturing, www.PerformancePanels.com). Edges also represent the weakest point in this respect. The building code has a minimum requirement for the thickness of Traditional Hard Coat stucco, it is 7/8 of an inch. PR-N213: Norbord Inc./West Fraser Timber Co. Ltd. PR-N136: Georgia-Pacific Wood Products LLC, ESR-2586: APA The Engineered Wood Association. Her writing on gardening, home improvement and travel appears both online and in print. (Exception: 3/8" for gable end walls structural sheathing.) One of the industry's most popular mortars. See theCompliance tabfor related codes and standards requirements, and criteria to meet national programs such as DOEsZero Energy Ready Home program,ENERGY STAR Single-Family New Homes, andIndoor airPLUS. To prevent the introduction and spread of plant pests, ISPM 15: International Standards for Phytosanitary Measures, requires that internationally shipped solid wood pallets be debarked, treated with heat or fumigated with methyl bromide, and marked with a seal of compliance. While we continually update our database, links may have changed since posting. The rough side provides traction for workers installing a roof and has no significance when the OSB is used as wall sheathing.