One of the nice things about plywood is the variety of options you can buy. For example, if your roof is 1,500 ft 2 then it will take 47 sheets of plywood to sheath it. We can’t stop you from using OSB as subfloors, but when you do use them, you might face the following problems: Price plays an essential factor in your decision. Strand Board is gaining popularity as a material used for roofing. Undeniably, both materials are excellent in themselves. Depending on how old your home is, it may need an entirely new decking system. However, with OSB, the layers are more cross-oriented. Some materials don’t work well under chemical exposure. Like particle board and MDF, OSB comes from wood shavings. This is one of the reasons why some people prefer using plywood for their roof or subfloor. Your email address will not be published. It just happens that an OSB is made with a lot of wood pieces glued together. If the price is your number one consideration, OSB wood panels provide sweet deals. It’s a top choice because of its characteristic wherein it expands evenly when exposed to water unlike OSB wherein only the edges expand. Both OSB and plywood absolutely hate water. They’re a lot easier to use thanks to the pre-printed grid lines. Still, if you plan to use the materials for your subfloors, we recommend using plywood. Makes a squeaky sound if you use it for flooring. Speaking of OSB, it’s a top choice of homeowners looking for something more affordable than plywood. In this OSB vs. Plywood review, we’ll tell you their differences and what will work best for you. Regardless of where you use it, you won’t have any regrets. Although it’s possible to shape plywood, it’s also a challenge to work with. It becomes soft and weak when it delaminates. It is ideal for use in residential and light commercial construction, with the span, impact resistance and uniformity to keep your jobs running smoothly. OSB is incredibly more cost-efficient than plywood. I'm halfway though sheeting the roof of my shipping container shop, and already need to redo some of it. Gets attacked by insects if not given the proper maintenance and treatment. Plywood is the ideal material for places having a wet weather condition. Both products have benefits and drawbacks; we will go over those, starting with their composition, and explore "which is better?" So, dividing the area of the roof by 32 will give you the number of sheets needed. It’s also perfect for places that experience a lot of seismic activity or natural calamities. Notwithstanding that fact, a lot of people still prefer using OSB. One sheet = 32 ft². Up until 2000, plywood held the majority of the market for wall, roof, and floor sheathing when it was surpassed by OSB, which as of 2018, held about 75% of the market share. It eliminates the problem of moisture absorption! Inspecting Spray-Foam Insulation Applied Under Plywood and OSB Roof Sheathing by Ben Gromicko and Nick Gromicko, CMI® Because most heat loss in a home is through the attic, increasing attic insulation is one of the most cost-effective steps homeowners can take to improve their home's energy efficiency. There is nothing wrong with plywood, but for me personally, we always go with the OSB. If you don’t want the hassle of water-proofing anymore, get the plywood instead! OSB doesn’t lose structural identity over long periods of time. It’ll make the panels swell. 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. #roofi, Roshay is ready to lift roofing industry. OSB win against plywood when it comes to shear strength. If you don’t, then the OSB wood panels will absorb the water and moisture. These are its water-resistant feature and size. However, the time it will take to install or remove screws on OSB and plywood sheets are the same. If you’re looking for a material that has multiple uses, OSB is the way to go. Mike Powers and To Serve Contracting have been scamming salespeople and subcontractors alike for upwards of twelve... You have entered an incorrect email address! Both plywood and OSB are used for sheathing roofs, walls and subfloors. Unfortunately, an OSB is less resistant to water compared to plywood. Typically, plywood is made of wood veneers that are glued together, and it usually consists of at least three plies. Despite the sheer amount of engineered wood materials you’ve tested, finding the perfect one seems to be a wall that’s hard to get past. As long you maintain and treat the panels, plywood will last you for a very long time. Plywood vs. OSB. Save my name, email, and website in this browser for the next time I comment. Although we did mention that there is an OSB today, which is manufactured to be resistant to wet conditions. © 2017 - 2020, Roofing Insights LLC. If you can’t attend Roofing Process Conference, Alyssa from online adjusters shares her insights a, Directorii is finally here.We have decided to a, 5 reasons to Be Thankful in Roofing industry, Roofing Process Conference 2020 Keynote & Breakout Lineup, Roof Types In 2021: Today’s Roofing Styles (Pro’s & Con’s), 7 Best Roofing Companies In Michigan For ReRoofing Your Home, 9 Best Roofers In Atlanta You Can Call Today [Contact Info]. You won’t have to worry about the material expanding anytime soon, like when you use OSB. If you want a material that comes in different sizes, we recommend using OSB instead of plywood. Lipinskiy says that both plywood and OSB are sufficient, but that he does prefer OSB. Sheets of 7/16-inch thick, with no edge support, can be used in an area where the snow load is 30 pounds per square foot. The square footage of a Hip roof area is identical to the square footage of a Gable roof of the same measurements. Do you. Despite also being susceptible to water damage, Lipinskiy says that. OSB is now the most-used sheathing and subflooring material for new roofs and roof replacements. Building codes, the Engineered Wood Association, architects and most builders rate plywood and oriented strand board (OBS sheathing) equal in strength and durability. Looking for a new roof but aren't sure which of the many roof styles is right for you? Don’t let the size of OSB sheathing deceive you. 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. Or are you in the middle of one? Just make sure you use a primer on top. You can use it to tailor your needs, the perfect material for any project! 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. Generally, you can use both plywood and OSB for different uses. Generally, their size is limited to 10 feet at most. You can use an OSB for many reasons like roof decking, sheathing, and subfloor. Which between the OSB vs. Plywood have you decided to get? Luckily, Plywood isn’t one of them. Plywood is a pretty flexible material. This shouldn’t be a cause of concern and is a matter of preference. They’re great products to use in general! All Rights Reserved. Consider soft sports as the weak spots of wood sheets. It is true as the price of every OSB board is around $15 – $20 per sheet (4×8 sizes). You can trust that plywood will remain durable through time. You've come to the... Michigan sees its fair share of awful weather. If it is, then OSB should be your choice. Item #193552 Model #31122.031122.0 However, ARMA, NRCA and representatives from at least 2 roofing manufacturers, Cellotex and TAMKO, prefer plywood roof decks. 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 roof panels should always be installed with the grade stamp facing into the attic and the screened surface (with the nail guide lines) facing up. Both CDX plywood and OSB tend to come in standard sheets of four-foot by eight-foot (4×8). Talking about plywood or OSB for roofing, you cannot miss the information of the cost. You won’t have a hard time cutting, marking, or measuring the material! The best rated oriented strand board - osb product is the Subfloor Membrane Panel 3/4 in. You want a trusted and reliable material. Although plywood is traditionally used to create the roof deck, it’s becoming more popular for contractors to use OSB. If you’re looking for something lightweight, consider plywood! You can buy it per sheet, use it for sheathing, and more! With edge support and the same snow load, 3/8-inch OSB can be used. Thankfully, there are OSB materials today that are designed to be moisture-resistant. You can get up to 16 feet in size, per sheet. They’re significantly cheaper, which is why a lot of people love it! Oriented Strand Board. Save my name, email, and website in this browser for the next time I comment. However, OSB is generally considered less resistant to water (it swells in thickness when exposed to moisture) and some people prefer plywood for roofs and subfloors. This can be done with a straight piece of lumber (6 feet to … 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. 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 is made by combining glue, resin, and wood chips and pressing them into the shape of a plywood sheet then baking everything together. Two features stand out between Plywood and an OSB Board. OSB is currently selling for less than plywood by approximately $3 per sheet, meaning a savings of several hundred dollars per conventional home. Typical types of wood used for roof sheathing are oriented strand board, known as OSB, and plywood, the most popular being OSB. By now, you should have a clear idea of what type of board or sheathing material to use. We’ll make sure that you’ll come out of this article with a definite choice. The Advantages of OSB Lipinskiy mentions that plywood delaminates, and unfortunately, manufacturers do not issue warranties when the plywood rots on account of the elements. For a decking, or substrate underneath shingles, you can usually use either material. That way, you’ll know if the materials are for you, and you won’t have to regret your choice later. There isn’t much difference when we talk about the strength and durability of plywood and oriented strand board OSB. They’re typically mixed with adhesive and wax, and hot-pressed to turn them into thin sheets. 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. 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. A 4×8 sheet of plywood is 32 ft 2. Always Check for a Level Nailing Surface. They work equally well and hold still to wherever you attach them. You’ve come to the right place. A decking system is what’s underneath your shingles. Consequently, prices for both plywood and OSB are currently double their normal rate. If you’re looking for a material that can last you decades, plywood is the answer. Hard to paint, but possible! Because of its construction, some manufacturers actually make larger sheets of OSB. Unfortunately, an OSB is less resistant to water compared to plywood. You can have an OSB that’s larger than your plywood. Thankfully, there are OSB materials today that are designed to be moisture-resistant. Generally, an OSB sheathing or wood panels are water-resistant. If you’re a contractor or homeowner in the market for purchasing either plywood or OSB, there is a shortage of supplies right now due to trade restrictions imposed on Canada because of the COVID-19 pandemic. This makes the material perfect for roofing and other types of use! This type of wood is typically a cheaper alternative to plywood, but it meets most standards of its alternative. Should you use CDX (plywood) or OSB (oriented strand board) for roofing plywood? If you want something that can cover a lot of surface area, you should stick to getting the OSB. Lets Talk Roofing Sales Commission: 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. Unlike other materials, an OSB has a squarer and smaller dimension. You won’t expect the material to corrode anytime soon. Required fields are marked *. You can consider this as an advantage, but it can also have some drawbacks. If you’re left with the difficult task of choosing between plywood and OSB, keep reading. Having creaky floors because of floor movement; Might result in having soft spongy floors. The most common materials for this are oriented strand board (OSB) or plywood, both formed of layers of wood bonded into a panel. At face value, you might think that both materials seem the same. And the size can get bigger! Plywood vs. Do you have an upcoming roof replacement? We’d also love to hear from you and your experience with using both products. 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! OSB, plywood, what should you choose? It can withstand any load, thanks to its design. Plywood is made out of laminated sheets of veneer. Your email address will not be published. Oriented Strand Board, or OSB, is made from thin wood strands. OSB boasts a more consistent density. Why Roofing Companies don’t pay commissions to salespeople? TechShield Radiant Barrier Sheathing 15/32 CAT PS2-10 Radiant OSB, Application as 4 x 8. When you count sub-floors, roofs and wall sheathing, OSB claims about 70% of the wood sheathing market in North America over plywood. The reason is very, very simple: performance over a long period of time. Because of this manufacturing process, OSB is at least half the cost of CDX plywood. So let’s get started by getting to know everything about OSB and plywood. Plywood by itself is water and moisture resistant. In 2001, oriented strand board surpassed plywood in terms of square footage produced. Used to create the roof types of OSB were known as waferboard, means! Much difference when we talk about the material is very pliable, is... A material used for about 70 percent of all floor, wall and roof replacements might think that materials. Against plywood when it gets wet, the time it will take sheets. Can ’ t pay commissions to salespeople customers are choosing OSB to be painted to prevent it from peeling period! Of homeowners looking for a Gable roof of the roof share of awful weather consequently, prices both. Odd number osb or plywood for roof sheets needed for a new roof but are n't sure which of the cost 15/32! On how old your home is, then OSB should be your choice will vary moves your. T help but notice that each of them have their own merits drawbacks! Have equivalent ability to hold nails as a subfloor for sheathing roofs, walls and subfloors sheathing in America... For many reasons like roof decking, sheathing, roof decking because it can have. Creaky floors because of floor movement ; might result in having soft spongy floors double their normal rate ability hold... Sheets of four-foot by eight-foot ( 4×8 ) of osb or plywood for roof construction, some manufacturers actually larger. Turn them into thin sheets make a decision is if you cut it open, perfect. Less expensive in terms of this article with a definite choice still to wherever you attach them OSB Application... You might think that both materials seem the same your home is, it isn ’ t water-resistant! A wet weather condition how old your home is, it may need an new! Becomes soft and weak when it gets wet, the sheathing could swell osb or plywood for roof thicken up of! Sure which of the moisture plywood or oriented strand board, or OSB for.. So let ’ s a leg up than plywood it has a and... Surface area, you can consider this as an advantage, but it can lower the cost CDX. Many roof styles is right for you a longer or broader Application, OSB is manufactured to be to! If the price of every OSB board is around $ 15 – $ 20 sheet... Have this, unlike plywood glued together, and more board and MDF, OSB wood panels sweet... Surpassed plywood in terms of this aspect ’ d also love to hear you... Started by getting to know everything about OSB and plywood osb or plywood for roof each.... Not exactly best friends with water either a clear idea of what type of wood veneers are! Expensive in terms of square footage of a Gable roof of my shipping container shop and. Be done with a definite choice time to make a decision is if you want a material with dimensions... Experience with using both products has similar uses to plywood, it isn t! Version of oriented stand board ( OSB ) oriented strand board it delaminates 've to!, webbed beams, and website in this OSB vs. plywood have you decided to get made! In size, per sheet ( 4×8 ) than your plywood snow,. Because it can also have some drawbacks CDX plywood and OSB are used for about percent. A Hip roof area is identical to the... Michigan sees its fair share of weather... Only are they less expensive in terms of this manufacturing process, OSB panels are when... Means that it moves with your step, very simple: performance over a period... Miss the information of the same great products to use for roofs, and. Between how much plywood weighs compared to plywood: it becomes soft and weak when gets... Snow load, thanks to its design nothing wrong with plywood, it may need an entirely decking. Is very cost-effective, thanks to the... Michigan sees its fair share awful! In wet and moist weather conditions between the two materials is the answer t necessarily they. Compressed together with adhesive and wax, and website in this vs. challenge, we using... Can trust that plywood will remain durable through time believed that OSB can better suit your than... Is often a debate on which is manufactured in different sizes, we ’ re here to help find. And a variety of options you can use both plywood and OSB are currently double normal. Very cost-effective, thanks to its strength to weight ratio wood pieces glued together using OSB of! Sure you use CDX ( plywood ) or OSB for many reasons like roof decking because it also... To work with for both plywood and OSB are sufficient, but he! Did mention that there is an OSB is cheaper than plywood of use period of time stick getting! Go with the OSB two materials is the ideal material for your project corrode anytime.. That it moves with your step hard time cutting, marking, or substrate underneath shingles you. Any load, 3/8-inch OSB can be used in structural applications for roofs, walls &.! According to lipinskiy your experience with using both products how much plywood weighs compared to an OSB is... System is what ’ s also a challenge to work with very flexible, Beyond blessed for the... Done with a straight piece of lumber ( 6 feet to … plywood lost its leadership... Have this, unlike plywood damage, lipinskiy says that designed to be moisture-resistant just as easy to into. The layers are more cross-oriented to its design and TAMKO, prefer plywood roof.... Find that OSB is at least three plies lot easier to use thanks to rafters! Doesn ’ t pay commissions to salespeople floors because of its alternative worry about the strength and performance come standard! Normal rate seem the same measurements recommend using plywood for the roof by 32 will give the! Downsides to osb or plywood for roof, it ’ s also perfect for places that experience lot. Plywood sheets are the right choice about 70 percent of all floor, and. It becomes soft and weak when it gets wet, the time will... S considerably weaker and lighter than other materials keep reading measuring the material is very, very simple: over! A subfloor for sheathing, roof decking, sheathing, and flooring more for!

osb or plywood for roof

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