osb thickness color chart osb thickness color chart

The finished boards are cooled, sanded and cut into varying lengths depending on their use. Wrong When insulated sheathing is installed correctly, you should not see daylight. FEMA P-499, Home Builder's Guide to Coastal Construction: Technical Fact Sheet Series, Right Correct fasteners and nailing pattern for structural wall sheathing, APA Building for High Wind Resistance in Light-Frame Wood Construction. 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. This is easily distinguished by the size of the chips (larger than any other type of board) and rough texture. When there are two numbers separated by a slash (i.e. Most OSB suppliers have a load/span table giving a guide to the spacing of timbers for different thicknesses. Plain sheets OSB-3 from Ultralam have dimensions of 2500x1250, 2800x1250, 2440x1220, 2500x625. Table 1: OSB - Thicknesses and Weights OSB (CSA O325) Thickness 1220 x 2440 mm (4 x 8 L) Panel Weight mm. Exposure 1 : OSB suitable for uses not permanently exposed to the weather. LP OSB sheathing can be used for wall, roof and flooring applications. 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 In addition to standing out in this use for its mechanical properties, it should be noted that because it is made of wood, it has interesting characteristics such as thermal and acoustic insulation. CLT offers design flexibility and low environmental impacts. Upper- and lower-story wall sheathing must be nailed to the common rim board. OSB is not recommended for outdoor projects. First, determine the OSB length. Ideally, after making the cuts, we seal the edges. endstream endobj 14 0 obj <>stream Suitable for internal and external floors and walls. A typical 4 x 8 sheet of 1/2-inch Marine Plywood weighsaround 51 lbs. PERFECTION SHINGLE LAP (FIBER) Length. A typical 4 x 8sheetof 1/2-inchOSB weighsaround 54 lbs. (Forests around the Baltic Sea can be up to 28% birch trees.). Right Coated OSB sheathing provides a continuous air and moisture barrier around the home. When used in the manufacture of crates and pallets, are Georgia-Pacific plywood and OSB safe for international shipping? 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. A fully sheathed wall of plywood or OSB, properly connected to the foundation below and roof above, is a strong barrier that resists the persistent forces of hurricanes, tornadoes, and high wind events. Remember, the values for plywood weight, OSB weight, etc. 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). Decorative furniture. Does not have nodes, gaps or other types of weaknesses such as plywood or solid wood. Also make sure that you get your supporting timbers at the correct spacing. Does GP's wood come from sustainably managed forests? They can be attacked by xylophagous fungi and also by some insects such as termites in certain particularly favorable environments. All rights reserved. This category only includes cookies that ensures basic functionalities and security features of the website. 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. The roof sheathing must be at least 3/8-in. The objective is to imitate the composition of a plywood, plywood or plywood panel, where the plates alternate the grain direction. 2023 Louisiana-Pacific Corporation. Sanding of the wood, which takes place during manufacturing, can remove up to 1/32 inch of material from the plywood sheet. Max-Rib is a low profile (3/4-inch) panel that is equally well suited for residential roofing and post frame applications. See Baltic Birch Plywood at the Home Depot. Other products have corrugated side protectors that should indicate piece count. 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. The colors and numbers of stripes will vary. Suitable for load bearing applications in construction. Recall Information: Decking | Press Releases. Because of this and the fact that the southern yellow pine usedis much heavierthan other wood species used in construction, pressure-treated plywood tends to be a heavy plywood. The right thickness for two walls is 12 mm to 15 mm. Right This coated OSB sheathing product is available with an integrated insulation layer. All are APA-rated and backed by a 20-year transferable limited warranty. MDF: Medium Density Fiberboard is produced from wood scraps left over from other wood product manufacturing activities. Place one 44 in the center and the other two 4x4s 12 to 16 inches from the ends. Appendix J regulates the repair, renovation, alteration, and reconstruction of existing buildings and is intended to encourage their continued safe use. Types 3 and 4 are the most likely to be found in any lumber company. MDF does not handle moisture well, and is normally only used for interior applications, such as flooring or furniture. A typical 4 x 8 sheet of 1/2-inch MDO weighsaround 48 lbs. This guide provides an overview of wood structural sheathing in exterior walls with a focus on applications in hurricane-prone regions or other high-wind areas. Strengthen the vertical framing members of the gable end with the use of retrofit studs. OSB "Oriented Strand Board". Relative to their strength, OSB panels are light in weight and easy to handle and install. Thickness. 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. 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. In these cases manufacturers require that you take some steps to add the item to your cart or go to checkout to view our final prices when lower than the manufacturer's set minimum advertised pricing. 1000 Independence Ave. SWWashington DC 20585. Use pieces of lumber to weigh down the top panel in a stack to reduce warpage from humidity. Well, the truth is that for a long time. The pressing parameters varied in some limits depending on the board thickness and type. Native New Yorker Meg Jernigan has lived all over the United States, nurturing gardens in the Northeast, the Mid-Atlantic, the West and the deep South. Building Code Performance Categories, Panel Thickness 7/16 CAT 0.418" (10.61 mm) 15/32 CAT 0.451" (11.45 mm) 1/2 CAT 0.483" (12.26 mm) 19/32 CAT 0.578" (14.68 mm) 23/32 CAT 0.703" (17 . Confirm with the local building department if the house is in a hurricane-prone region and if local requirements exceed those of the IRC. homemade hamburger helper stroganoff; furniture donation pick up jacksonville, fl; vivir conjugation present Minimum: 7/16" thickness. OSB-2. Overview of Normal Minimum Thicknesses for Different Uses: 9 + 10mm: packaging, protective panelling, furniture Select LP SmartSide products are available in 16 ExpertFinish prefinished colors. Thickness. Gable ends that are taller than 16 ft and/or have irregular shape. Excellent resistance and high load capacity. A guide aiming to assist local officials and community decision makers in coastal areas in adopting and implementing sound mitigation measures to lower building natural disaster vulnerability. $3.49/sq.ft. Wrong The gable end wall failed because the rigid foam sheathing was not backed up by plywood or OSB. Easy water cleanup. 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. It also describes where Performance Rated panels are used and provides updated trademark and performance category information. Because of the manufacturing process, OSB is less costly and more environmentally sound than plywood. The point is that we can find them not only in domestic environments, but also in offices, stores, etc. CDX plywood, the most common plywood used for roof sheathing,is a grade of softwood plywood. Available Performance Categories: from 3/8 to 1-1/8* Key recommendations (taken from the gable end wall bracing retrofit section of the IBHS High Wind Standard : Minimum requirements for use of the prescriptive methods detailed in IBHSs Gable End Wall Bracing Retrofit Section are as follows: Cases that are not covered in this retrofit guidance require that a licensed professional engineer design a gable end bracing system that will meet wind forces appropriate for the location. OSB is the most-used sheathing material for new roofs and roof replacements. Although, on the other hand, they have disadvantages. Right - A drywall gasket is installed along the top plate before installed drywall. The International Residential Code (IRC) requires exterior building components and their attachments to be capable of resisting design wind-pressures. Install water resistive barrier (WRB) on the structural sheathing. We set our own Everyday Low Prices as well as sale prices, but some manufacturers restrict how retailers display that pricing. Typically 3/4"(18mm) for floors and 3/8" (9mm) for walls and 1/2" (11mm) roof. What is the flame spread classification for OSB? A story on green building in Saturday's Home & Real. All Rights Reserved. It is also called LDF (low density fiberboard). Jeff_Clarke | Aug 10, 2008 04:49pm | #18. 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. Wrong The flashing tape was not installed with a roller to completely adhere it to the OSB sheathing surface. Difficulty in getting a really smooth finish. Durability against fungi and insects. Longitudinal: 0.03 0.02%. In an OSB panel the two exterior surface layers of wood strands are oriented parallel to the long axis of the panel. When precision is necessary, always refer to the specification sheet for the actual, specific product you intend to use, or contact the technical department of the panel manufacturer. Within the grade stamp on a panel you will find the span rating. Strands of varying lengths are dried and then mixed with water-resistant resins used as a binder before being pressed into boards. A 4x8-foot sheet of construction-grade plywood costs roughly $10 a sheet, while the same size sheet of OSB costs only $6 a sheet. Workability. That is, store them for at least 2 days in their final location. So in the above scenario, the hinge side would be blue. For the curious - 7/16" OSB has a span rating of 24/16 and with supports every 24 inches is good for a roof live load of 40 psf (pounds per square foot) with a 10 psf dead load. Please see our Disclosure Statement. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'roofonline_com-netboard-2','ezslot_29',172,'0','0'])};__ez_fad_position('div-gpt-ad-roofonline_com-netboard-2-0');A typical 4 x 8 sheet of 1/2-inch Hardwood Plywood weighsaround 48 lbs. Its manufacturing process can be considered more environmentally friendly or responsible than the manufacture of plywood. Video showing a technique for airtight sheathing installation on exterior walls using foam gasket strips. This is because the process of manufacturing engineered wood destroys any live organisms in the wood. Plywood is composed of approximately 92% 97% wood, with the remainder made up by primers, sealants, and adhesives such as phenol formaldehyde resin. You must have JavaScript enabled to use this form. See Figure 1. It can be worked with the same tool and machined in the same way as other types of boards or wood: cut, drill, drill or nail. What these defects produce is that at certain points the plaque is weaker. Pressure-treated plywood is heavier than other plywoods even after drying out from the pressure-treating process. Inch Calculator 14k followers More information graphic showing various types of plywood and their actual thickness Woodworking Plans Beginner Woodworking Techniques Exterior glue. Limit 90 per order. It is a very common and common product, at least in North America and Europe. . Relative to their strength, OSB panels are light in weight and easy to handle and install. OSB (oriented strand board) is made from large, flat chips arranged in as many as 50 layers, which are adhered together with glues and pressed into sheets. 2000-2022 Home Depot. More Photos Features Standard FRP. OSB Basics Older timber is spared. Baltic Birch Plywood: This is a high-quality plywood traditionally produced in Russia and other areas around the Baltic Sea. 5/16, 3/8, 15/32, 1/2, 19/32, 5/8, 23/32, 3/4, 7/8, 1, 1-1/8. Exposure 1 rated for limited exposure. The second number is the maximum center-to-center spacing of supports in inches when the panel is used for sub-flooring with the long dimension across supports. OSB is made from abundant, small diameter poplar and aspen trees to produce an economical structural panel. Thanks to their excellent properties, which include strength, stability and comparatively low price, they have become a reference not only in structural applications, but also in the world of decoration, where their striking and differentiated aspect plays in their favor. given in our weight tables are meant to provide a general idea of typical engineered wood panel weights, and should not be used if precise values are needed for critical engineering calculations. This goes for all other types of engineered wood panels as well. These prescriptive methods of retrofitting are intended to increase the resistance of existing gable end construction to out-of-plane wind loads. Densglass Technical Guide - Gypsum, Wood, Lumber, OSB Boards Both as a suitable support for a roof and as part of sandwich panels. f $ 48/24), the first number is the maximum recommended center-to-center spacing for supports in inches when the panel is used for roof sheathing with the long dimension across supports. (Exception: 3/8" for gable end walls structural sheathing.) 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. 0.315 in. Minimum of 3/8-in. On sheathing products, the piece count is typically stenciled on the side of the unit. wood structural panels on both wall faces. 1.5 PSF. The 250 125 cm and 10 mm thick OSB / 3 costs 16-19. The price of OSB has increased 510% since January 2020, exceeding the peak price increase in lumber by nearly 180 percentage points. The thickness required by Josh's circumstances are good for roof snow loads of up to 70 psf (again spanning 24"). osb thickness color chart. Right The seams are taped on the coated OSB sheathing of this home to provide a complete air barrier. If you need a piece count and neither of those are visible, please contact GP at 800-284-5347. Wind loads are the most common loads that shear walls are designed to resist. This is because after it's manufactured, plywood shrinks as it dries. It is generally the lightest type of engineered wood panel, due to the light weight of the wood species used and the (relatively) low amount of adhesive used in the manufacturing process. Its mostly so they can sort the different thicknesses and materials, at the warehouse and at the store. Roof Online participates in the Amazon, Home Depot, and Roofle affiliate programs and may earn commissions from purchases made through links on our website. Anchor the covering at the top of the stack, but keep it open and away from the sides and bottom to ensure good ventilation. The cost per panel depends mostly on thickness, ranging from 1/4-inch to 23/32-inch. Can Oriented Strand Board (OSB) be Used for Roofing. Resistance limited to moisture, especially when compared to phenolic plywood. New construction and retrofit are opportunities to upgrade the exterior structural sheathing to meet standards and building codes and to decide if selecting an above-code strategy for an added level of protection is the right choice for the project. Please contact our webmaster if you find broken links. Right Coated sheathing is taped at all seams to serve as an exterior air barrier on the walls. Plywood boards: characteristics, types and uses, How much does cost install laminate flooring? Building Code Performance Categories, Panel Thickness 7/16 CAT 0.418" (10.61 mm) 15/32 CAT 0.451" (11.45 mm) 1/2 CAT 0.483" (12.26 mm) 19/32 CAT 0.578" (14.68 mm) 23/32 CAT 0.703" (17 . 4' x 9' panels available in select colors. Jack Gray is a principal roof consultant and vice president at theMoriarty Corporation, an award-winning building enclosure consultant firm founded in 1967. (See code for additional requirements and exceptions.). Products shown . However, we can also find other types of OSB boards (which will always be included in some of the previous classes) that are sold with some additional features or modifications. But opting out of some of these cookies may have an effect on your browsing experience. 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. Video describing exterior rigid foam insulation. While we continually update our database, links may have changed since posting. Baltic birch plywood is used mostly for furniture-making and cabinetry. R602.3.5 Braced wall panel uplift load path. An OSB board consists of several layers of glued wood chips to which pressure is applied. When using a mechanical hot air welder there are practical slope limitations. Select the appropriate thickness for wood structural sheathing panels. Optional Accessories. Next, determine the OSB thickness. 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. &o_a-~K9SY Install structural sheathing (plywood/OSB) in exterior walls to ensure the building will resist design wind pressures. 28 0 obj <>/Filter/FlateDecode/ID[<32F7D9CC4D47B9E52675B806848BF73E><6DCEBAC53741C943A63DD9CED9311CD0>]/Index[10 28]/Info 9 0 R/Length 87/Prev 62834/Root 11 0 R/Size 38/Type/XRef/W[1 2 1]>>stream 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. Exterior wall sheathing is more likely to be damaged or lost in hurricane-prone regions and other high-wind areas, leaving the house susceptible to wind and water intrusion.