These are plywood and OSB (oriented strand board) boards commonly used for sheathing walls, roofs, and decks. (Fwiw, as a GC I would use it on my own home) if your roof is trussed, its typically spaced at 24" OC. Im fixing some tapco tiles to a roof that has 11mm osb board then battens on top. Oriented strand board (OSB) is commonly used as the primary structural sheathing component in residential construction and low rise commercial applications. OSB boasts a more consistent density. View Details. x 4 ft. x 8 ft. Zip System Aspen Oriented Strand Board Roof Sheathing appears to have been discontinued and is no longer in stock or available for purchase on Homedepot.com. OSB is lightweight, cheap and strong enough to resist bending or breaking should someone be walking on the roof. It is ideal for use in residential and light commercial construction, with the span, impact resistance and uniformity to keep your jobs running smoothly. THD 5/8 4x8 Oriented Strand Board Tongue and Groove 19/32 (31)-View Details. … Unlike other materials, an OSB has a squarer and smaller dimension. The fixing guide says I need 18mm. Customers are choosing OSB to be installed as their roof decking because it can lower the cost of their overall roof installation. Compare Click to add item "LP® ProStruct® 7/16 x 4 x 8 Roof Sheathing with SilverTech®" to the compare list. Installation instructions. How to install osb roof deck sheathing. Should you use CDX (plywood) or OSB (oriented strand board) for roofing plywood? 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. For a decking, or substrate underneath shingles, you can usually use either material. OSB panels can be manufactured in lengths up to 16 feet (or sometimes even higher), while plywood is generally limited to 8 to 10 feet. OSB will have more "give" in it than plywood. I would prefer plywood, but MANY have been built using osb. Use 5/8 inch C/C PTS grade for your overhangs and 5/8 inch CDX for the rest. Get all the plywood supplies needed to finish your home renovation project here. Sheathing Type Typically, 15/32-inch or thicker panels are required in high-wind areas. Solarbord is a premium radiant barrier OSB roof sheathing that reflects 97% of radiant heat for attics that are up to 30% cooler. Malcolm, I almost always use 5/8" ZIP sheathing on roofs, and metal roofing installers have never questioned it. The 5/8" would be good for the snow loading (live load) in minnesota. OSB is incredibly more cost-efficient than plywood. I've never used commodity OSB on a roof but it's probably fine in 5/8" thickness, and possibly in 1/2" thickness. Add To Cart. Not just that, but most an OSB is manufactured in different sizes. That has since changed (NJ) and the 7/16" is allowed. Some older H-clips do not provide a built-in gap. 7/16 In. Always pay attention to the thickness of the boards, and work accordingly with your materials. While OSB (Oriented Strand Board) is generally cheaper than plywood, it is heavier and not as stiff as plywood and can result in soft squeaky floors under weight.The biggest complaint against OSB is that it doesn't handle moisture very well so it is more suited for indoor use. Multiply the length of the roof in feet by the width of the roof in feet to find the area of the roof … There is no question that plywood is better then OSB. OSB panels are one of the most commonly used products for creating subfloor underlays. Compare Click to add item "5/8 x 4 x 8 OSB" to the compare list. Oriented Strand Board (OSB) or … A staple in a wide range of construction projects, OSB board is used for everything for sheeting through to structural sheathing and more. • LP OSB Structural 1 panels have superior maximum live load over standard OSB when installed with the long axis parallel to the struc-tural supports. See Store Availability. Most OSB suppliers have a load/span table giving a guide to the spacing of timbers for different thicknesses. Once the area is known, divide by the area of a 4×8 sheet to find how much sheathing is needed. OSB building materials offer more consistent width and strength than plywood.This material is also suitable for serving as an inner layer in exterior walls. New homes will usually see a few rainfalls before a roof is on, and as noted above, OSB doesn't handle moisture well. Install the panels, tape the seams with Hubers ZIP System tape and the building is rough dried-in. For SI: 1 inch = 25.4 mm. To find the amount of plywood needed to cover a roof start by finding the area of the roof. While a sheet of plywood might be 5 to 7 plies thick, a sheet of OSB is made from as many as 50 strand layers packed and compressed into the same thickness. Sku # 1242825. View Solarbord Product Details » Trubord OSB 4×8 square edge wall and roof sheathing is exceptional value for today’s builders. OSB and plywood come in thicknesses ranging from 5/16 to 3/4 inch, and the thickness needed for a particular roof depends on several factors, including rafter spacing, expected load and roof design. You can use an OSB as a subfloor for sheathing, roof decking, and more! Our varied selection of building supplies include engineered wood products suitable for subfloors and underlay structures. TECO but specifically designed for wall and roof sheathing and subfloor. Dimensions include: OSB board 18mm; OSB … A good alternative to ply-wood and usually cheaper, we stock OSB3 board in a selection of sizes. Typically 3/4"(18mm) for floors and 3/8" (9mm) for walls and 1/2" (11mm) roof. 4 Ft. x 8 Ft. Huber Zip OSB Wall Sheathing ZIP System Roof and Wall Sheathing panels ZIP System Roof and Wall Sheathing panels are Oriented Strand Board (OSB) structural panels with built-in protective overlays that eliminate the need for building wrap or roofing felt. n The highest uplift forces occur at roof corners, edges, and ridge lines. A homeowner recently wrote and asked me the following regarding OSB roof decking: Q. Plywood is made of thin veneers stripped from a spinning log and laminated together perpendicularly under pressure, usually 5-7 layers thick. Just make sure it is exterior grade ply so it will not delaminate if it gets wet. Compare. OSB is … I have rafters that are 40cms apart beneath the osb sheet. Also make sure that you get your supporting timbers at the correct spacing. Roof sheathing may also be constructed of plywood. Free Shipping . Sold in Stores 3/4 x 4 x 8 OSB. There are even variants of OSB that come with building wrap already in place, so installation is as easy as taping the seams together. Thanks Item #193552 Model #31122.0 TechShield Radiant Barrier Sheathing 15/32 CAT PS2-10 Radiant OSB, Application as 4 x 8. Structural 1 Sheathing • LP OSB Structural 1 sheathing panels are designed to perform as roof, sidewall and floor systems, where high wind or earthquake conditions may occur. Oriented strand board (OSB) is one of the most popular materials for roof sheathing. Add To List Click to add item 5/8 x 4 x 8 OSB to your list. On roofs over 6:12 the half-inch ply should be okay on 16's but I'd still want 5/8 if the roof framing was on 24's. Find the Area of a Roof. Oriented Strand Board, commonly referred to as OSB, is a type of engineered lumber similar to particle board, formed by adding adhesives and then compressing layers of wood strands. Plywood is a bit more expensive than OSB but is usually stronger. Insulfloor 4 Pack 15.5 inch x 48 inch x 1 inch ThermoSmart Subfloor Panel (1) $49. Despite its common use as such, we don't recommend using OSB for subfloors, but that's really just for aesthetic reasons. So you may want to consider upgrading to 5/8" or 3/4" OSB instead of the typical 1/2" at the roof. The thickness of OSB that you need varies on where it is used in a building. Flexible Dimensions. Blue Ribbon® OSB sheathing panels contain no core voids, knots or splits and provide a quality base layer for wall and roof sheathing applications. Oriented strand boards are an eco-friendly option for remodeling or construction, as most wood for this product comes from well-managed tree farms. H-clips provide additional stiffness between bearing points for the unsupported edges of wood panel (plywood or OSB) roof sheathing, along with the necessary 1/8” gap for expansion, as shown below illustrated on a bag of Simpson H-clips. You can tell the difference between plywood and OSB with one glance – externally anyway. The thickness required by Josh’s circumstances are good for roof snow loads of up to 70 psf (again spanning 24”). Both types of reconstituted wood panels come in different sizes and thicknesses. OSB tends to sag when used over trusses (2' centers) over the years. OSB weight is usually a bit less than its plywood counterpart. On low-slope roofs, say 6:12 or less, I would opt for 5/8 ply for sure if on 24's but probably even if on 16's just because the saving that small extra cost ain't worth the worry. There Is also a plastic sheet (DPM sheet as its only a field shelter) then sarkit on top of the osb board then 32 x 25mm battens. Will the 11mm board suffice? Hi there, unfortunately, this 5/8 in. This makes the material perfect for roofing and other types of use! OSB panel products give engineers, designers, specifiers and builders a broad array of choices for use as subfloors, combination floors, wall and roof sheathing. When building a house, OSB makes for excellent sheathing. Comparing plywood and OSB n Improved fasteners such as ring shank nails increase the uplift resistance of the roof sheathing. 99 / box. Design Capacities for Oriented Strand Board Allowable Stress Design (ASD) ... Methods presented in this section may be used to calculate uniform load capacity of structural-use panels in floor, roof ... 3/8 7/16 15/32 1/2 19/32 5/8 23/32 3/4 7/8 1 1-1/8 Sheathing Span® OSB is widely used as roof decking material. Besides the very Installation details shall conform to Sections 2304.7.1 and 2304.7.2 for floor and roof sheathing, respectively. Not Available for Delivery . You can have an OSB that’s larger than your plywood. Many contractors will use OSB for roofing and subfloors. Almost every roof sheathing comparison/debate comes down to plywood vs. OSB. Where I'm from they didn't allow osb for roof decks, only sidewalls. CDX works fine in 1/2" or 5/8" thickness. Not all decking is the same. In "Choosing Between Oriented Strandboard and Plywood," the Building and Construction Technology department at the University of Massachusetts Amherst explains that 7/16-inch OSB and ½-inch plywood weigh in at 46 and 48 pounds, respectively, so they are quite similar. In the case of a subfloor, deformations left in the OSB after it dries can lead to wavy flooring. ; Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of Section 2304.7. Cat PS2-10 Radiant OSB, Application as 4 x 8 OSB '' to the compare list sure. At roof corners, edges, and decks and 3/8 5/8 osb for roof ( 18mm ) walls. Use OSB for roof sheathing, respectively s builders work accordingly with your materials designed for and... 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