Customers are choosing OSB to be installed as their roof decking because it can lower the cost of their overall roof installation. For us, we recommend choosing plywood if: We also recommend choosing OSB if you’re looking at the following factors: Now that you know more about OSB and plywood, we’re sure you’ll be able to make a choice! Which between the OSB vs. Plywood have you decided to get? Although we did mention that there is an OSB today, which is manufactured to be resistant to wet conditions. There isn’t much difference when we talk about the strength and durability of plywood and oriented strand board OSB. We’re here to help you find the best material for your job site. They’re great products to use in general! Finally, the notable distinction between the two materials is the size. You want a trusted and reliable material. All Rights Reserved. At face value, you might think that both materials seem the same. If you’re also looking for a material with big dimensions, OSB panels are the right choice. Do you have an upcoming roof replacement? If you don’t, then the OSB wood panels will absorb the water and moisture. Notwithstanding that fact, a lot of people still prefer using OSB. A few other downsides to plywood: It becomes soft and weak when it delaminates. When it gets wet, the sheathing could swell and thicken up because of the moisture. The best time to make a decision is if you’re informed about your choices. For example, if your roof is 1,500 ft 2 then it will take 47 sheets of plywood to sheath it. Whether you are building, remodeling, or just doing some repairs, many times you need a type of sheathing or underlayment for the project. Plywood by itself is water and moisture resistant. We’ll make sure that you’ll come out of this article with a definite choice. According to Dmitry Lipinskiy, owner of Roofing Insights, there is a 5% chance that older homes will need a completely new decking system when their roofs are repaired. OSB is made by combining glue, resin, and wood chips and pressing them into the shape of a plywood sheet then baking everything together. Lipinskiy mentions that plywood delaminates, and unfortunately, manufacturers do not issue warranties when the plywood rots on account of the elements. Both products have benefits and drawbacks; we will go over those, starting with their composition, and explore "which is better?" Undeniably, both materials are excellent in themselves. They’re typically mixed with adhesive and wax, and hot-pressed to turn them into thin sheets. Oriented Strand Board. OSB is now used for about 70 percent of all floor, wall and roof sheathing in North America. Because of its construction, some manufacturers actually make larger sheets of OSB. They work equally well for these uses, are just as easy to drill into and have equivalent ability to hold nails. 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. There’s a massive difference between how much plywood weighs compared to an OSB. But, we can’t help but notice that each of them have their own merits and drawbacks. Having creaky floors because of floor movement; Might result in having soft spongy floors. OSB has a greater shear strength than plywood panels; OSB is less expensive than plywood and, when its utilized for sub-flooring, wall and roof sheathing, the savings to builders are significant; Plywood panels. For a decking, or substrate underneath shingles, you can usually use either material. The Advantages of OSB Shop osb and a variety of building supplies products online at Lowes.com. Consequently, prices for both plywood and OSB are currently double their normal rate. You’re probably looking for which engineered wood material is perfect for your project. It’s a leg up than plywood, which comes in limited sizes. Typical types of wood used for roof sheathing are oriented strand board, known as OSB, and plywood, the most popular being OSB. Although it’s possible to shape plywood, it’s also a challenge to work with. However, with OSB, the layers are more cross-oriented. Both OSB and plywood absolutely hate water, Lipinskiy mentions, going on to say that the most important part, regardless of which decking option you choose, is that all penetration points on a roof are sealed. Oriented strand board (OSB) combines wood chips, glue, and resin into the shape of a sheet of plywood and bakes them together. It’s ready to use! Item #193552 Model #31122.031122.0 It is ideal for use in residential and light commercial construction, with the span, impact resistance and uniformity to keep your jobs running smoothly. Unlike other materials, an OSB has a squarer and smaller dimension. If you’re looking for something lightweight, consider plywood! Plywood is made out of laminated sheets of veneer. So if you’re looking for a material with a longer or broader application, OSB is your choice. The National Roofing Contractors Association (NRCA) in Rosemont, IL and the Asphalt Roofing Manufacturers Association (ARMA) in Rockville, MD both recommend the use of APA performance rated osb and plywood panels. OSB win against plywood when it comes to shear strength. In 2001, oriented strand board surpassed plywood in terms of square footage produced. Image Credit: Wikimedia Commons. As a homeowner, if you find yourself in this position, know that when you install a new decking system, you will have to decide between using plywood or OSB. Plywood is made with an odd number of layers for optimal strength and performance. Whether it's a roof repair or... Our school will teach you everything you need, 9700 International Drive, Orlando, FL 32819, Senior Copywriter at Roofing Insights, author of the internationally-selling book. However, ARMA, NRCA and representatives from at least 2 roofing manufacturers, Cellotex and TAMKO, prefer plywood roof decks. The curb appeal of your home is lost because soon your shingles will start to misalign, creating an eyesore on the top of your home. Required fields are marked *. You’ll need to apply these separately to keep the interiors water-resistant. They’re a lot easier to use thanks to the pre-printed grid lines. To be fair, OSB is not exactly best friends with water either. Both CDX plywood and OSB tend to come in standard sheets of four-foot by eight-foot (4×8). Thankfully, there are OSB materials today that are designed to be moisture-resistant. You don’t have to be torn anymore! Should you use CDX (plywood) or OSB (oriented strand board) for roofing plywood? When the grade stamp is covered by roofing, the building inspector will not be able to confirm that the correct OSB roofing panel was used. Plywood is very cost-effective, thanks to its strength to weight ratio. It’s the perfect material to use for shearwalls, webbed beams, and flooring! They work equally well and hold still to wherever you attach them. You won’t have to worry about the material expanding anytime soon, like when you use OSB. The calculation is based on that the Plywood or OSB (Oriented Strand Board) sheets are of a 4' x 8' size. OSB doesn’t lose structural identity over long periods of time. It is generally believed that OSB is cheaper than plywood. This type of wood is typically a cheaper alternative to plywood, but it meets most standards of its alternative. Talking about plywood or OSB for roofing, you cannot miss the information of the cost. With edge support and the same snow load, 3/8-inch OSB can be used. Although plywood is traditionally used to create the roof deck, it’s becoming more popular for contractors to use OSB. They’re 10% stiffer than OSB sheathing. Lipinskiy mentions, going on to say that the most important part, regardless of which decking option you choose, is that all penetration points on a roof are sealed. Save my name, email, and website in this browser for the next time I comment. You’ve come to the right place. It’s a top choice because of its characteristic wherein it expands evenly when exposed to water unlike OSB wherein only the edges expand. Depending on how old your home is, it may need an entirely new decking system. A 4×8 sheet of plywood is 32 ft 2. Plywood is the ideal material for places having a wet weather condition. You can use an OSB as a subfloor for sheathing, roof decking, and more! If you’re left with the difficult task of choosing between plywood and OSB, keep reading. It is true as the price of every OSB board is around $15 – $20 per sheet (4×8 sizes). OSB, plywood, what should you choose? If you want something that can cover a lot of surface area, you should stick to getting the OSB. It can withstand any load, thanks to its design. Your email address will not be published. It’s the perfect material for your sheathing or flooring! By now, you should have a clear idea of what type of board or sheathing material to use. OSB is now the most-used sheathing and subflooring material for new roofs and roof replacements. OSB boasts a more consistent density. Check out the Roofing Insights Directory! Generally, their size is limited to 10 feet at most. You can consider this as an advantage, but it can also have some drawbacks. You can have an OSB that’s larger than your plywood. When you count sub-floors, roofs and wall sheathing, OSB claims about 70% of the wood sheathing market in North America over plywood. And the size can get bigger! Find OSB sheathing osb at Lowe's today. We’d also love to hear from you and your experience with using both products. As long you maintain and treat the panels, plywood will last you for a very long time. The new plywood will have to be nailed to the rafters or roof trusses. Plywood vs. OSB. If you plan to use the material in wet and moist weather conditions, your choice will vary. There is nothing wrong with plywood, but for me personally, we always go with the OSB. Typically, plywood is made of wood veneers that are glued together, and it usually consists of at least three plies. Luckily, Plywood isn’t one of them. If you’re looking for a material that can last you decades, plywood is the answer. You can buy it per sheet, use it for sheathing, and more! TechShield Radiant Barrier Sheathing 15/32 CAT PS2-10 Radiant OSB, Application as 4 x 8. 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2020 osb or plywood for roof