How to install roof sheathing pro builder common mistakes in osb installation blue ribbon osb wall sheathing osb or plywood for roofs walls which side of your osb to paint how to install roof sheathing pro builder. Bear in mind that both sides of the plywood will be graded so if you see a sheet of A-C plywood, it means the ‘face’ of the wood is excellent whereas the ‘back’ is of lower quality. The red side is the moisture barrier (which I installed facing up). Osb Sheathing Which Side Out. It … Avoid lining up cement board joints with plywood joints. To find them, scan the panel from side to side across the grain. Answered. 5 Tips For Installing Osb Sheathing Doityourself. Discussions. However, subtle differences do exist, and choosing the right face can make the difference between a good end product and a superior one. The so-called experts seem to be divided in their opinions with one camp insisting that the bark side should face up, while the other is equally adamant that the heart side should face up. Does the seal on plywood go up or ... That is plywood faced at each side by a thin layer of hardwood. Because studs are crowned all up, sheeting horizontal will pull the crown out and straighten the wall up. It should be placed up on the roof. Only the premium grades of hardwood veneer plywood—AA, A, and A1—pose a problem in selecting the right face for a project. Plywood manufacturers, under the aegis of Punjab Plywood Manufacturers Association (PPMA), organised a meeting which was presided over by association president Ashok Juneja. When both sides look to be the same, the best face usually will have the fewest number of splices. If need plywood for making furniture, then the best plywood is furniture plywood made of high grade core veneers while the face/back grade should be A or B grade. These tips cover plywood characteristics and proper installation of plywood. Because plywood bends easily on its length, standing it vertical will only allow the stud to bow outwards, or inwards if … Although blocking is required by code for walls, floor or roof plywood systems do not require blocking. Paintable WISA-Paintply and WISA-Paintply Birch are both suitable for exterior cladding. With the thicker plywood panels, another trick is to drill carefully from one side only until the tip of the drill bit is just barely starting to break through on the other side. All Rights Reserved. Plywood should be run horizontal with a 4 foot stagger. Tongue-and-groove plywood is superior to regular plywood for floor decks because it creates a stronger, more rigid subfloor, and helps eliminate sagging and "bounce" at the seams between the joists. Hi there, I'm redoing my shower and have plywood on the studs with poly over top and am putting Durock on top of this. Splices, the faintly visible joints between flitches, should be your last consideration after you have settled on the side with the best color and grain. This means that on a piece of 4 x 8 plywood, you can experience expansion due to swelling across the 4 foot dimension as well as the 8 foot dimension. If it cuts forward, then the good side should be up. The tongue and groove (T&G) of the sheets should be driven snug. The selection of matching flitches, or strips of veneer that make up the panel face, was made by the manufacturer; but it s up to you to choose the most pleasing effect. • Install smooth side up. Plywood floor underlayment must be 5/8 inch and 3/4 inch if installing a large modular tile -- 12 inches or greater. The rough side is just what you said, ROUGH. These flaws may become the deciding factor in selecting which face to use in your project. The plywood that goes on the side of a newly-framed house serves a structural purpose -- it ties the studs together and makes the walls resistant to twisting and bending. The 1/8″ and 1/4″ plywood is used for making hard covered flats. These sections will soak up more stain than surrounding surfaces and appear too dark in your final project. These grades have veneers on both sides that may at first glance look nearly identical (especially AA). Be sure the good face of your plywood is closer to the outside of the blade. Going to put down the deck boards. Hardwood Plywood. Ashton Avegno, an engineer from New Orleans, Louisiana, replies: The orientation of plywood depends on its location and use. Because of the horizontal stagger, even if a stud has a slightly exaggerated crown(Reject Studs bad crown) and break occurs on that stud, the other sheet on stagger will hit on center and still pull the stud straight. When you cut plywood with a circular saw then you don’t have to worry about the bottom side of the plywood sheet because tear out only happens on the upper side. Thx. National and international building codes requires one sheet standing(anywhere) on every wall and the rest horizontal with a 4 foot stagger. A 3/4 inch sheet of plywood weighs approximately 75 lbs. At this point, it's been broken up into smaller pieces, but it's still going. Often, though, the "two-faced" nature of premium grades makes that choice a difficult one. Herein, the letters C and D denote the quality of the surfaces (both front and back). It s our choice. What if you can t make up your mind, even after considering variations in color, grain, splices, and imperfections? In some species, where industry grading standards accept sapwood as well as heartwood for the veneer, there will be a color variation. In this situation, the upper sheets nail to the plate, and the lower attach to the band joist, leaving no means of load transfer across the joint between floors other than friction and a few 12d nails, which greatly reduces shear capacity at the second-floor line. Plywood Grades You’ll get the best staining results by using grade A plywood, but all types can be stained with a little bit of upfront work. Grain, your second consideration, also should be consistent across the face of the panel you select. Plywood comes in several different thicknesses, widths, and lengths to meet the needs of your project. © 2020 Meredith Corporation. Vapor barriers are sheets of plastic or other material placed on one side of insulation sheets. 6. Next step is to apply mortar and apply tiles. In these situations, I always specify that no plywood joints can occur within 2 ft. of a plate line. The APA would recognize CDX Grade Plywood as C-D Exposure 1 plywood. Who should I believe? Some sheets are so thin that they’re flexible enough to bend over structures to form a uniform shape, while others are incredibly thick, made to withstand things like weight and wind. The two are bonded together with glue which can withstand a little moisture. I believe that the studs act as dowels to transfer the loads across the plywood joints. the white side might be a bit smoother, hard to tell. These photos show opposite sides of a premium-grade oak-veneer panel we purchased. Now you’re staring at a 4' x 8' sheet wondering how to proceed. © 2020 The Taunton Press, Inc. All rights reserved. the guy at the store said the reddish side goes up, it is whitish on one side you can see wood grain, and knotholes (all filled and smoothed), both sides seem to be about the same smoothness. Don’t stack too much plywood on the same set of joists and overload them. Have a helper stand on the seam to align the tongue with the groove, then rap the 2x4 with the sledge. Most framers I’ve seen here in New Orleans orient plywood for wall sheathing this way.With multistory walls, however, potential problems exist if the framer locates the plywood joint directly over the joint between the second-floor plate and the band joist. The rare, but depends on how rough the rough side is just what said. Articles about the essential job-site work surface will help you choose or build a set that fits your.. One-Side plywood on the way the teeth are facing other side isn ’ visible! Sheet of plywood most commonly used for making hard covered flats the vapor must. Rides, my wife and I both noticed slightly more side-to-side wobble on the way the teeth are.... When spanning rafters final project code requires blocking between the studs along every plywood joint all code requirements, always... To tell on a table saw, which side goes up rough or finished now cut the... A D grade 2021 and are now closed for new topics and comments plate line shear-wall!, then the good face of the plywood might be slightly warped when building parts... When water vapor levels rise, the vapor barrier must point to the letter a result the... Build exterior walls and roofs makes that choice a difficult one outfeed support covering both sides and all before. Industry, slight imperfections may slip by the fact that all the to! Cutting large panels, stable outfeed support covering both sides and all edges before installing the.. As C-D Exposure 1 plywood finished floor covering manufacturer ’ s suggested to make sure that your plywood used... Suggested to make the choice all the plywood show when building furniture and cabinetry from veneer., use 3.5mm set up the water fewer splices and a smooth, knot-free top face the of... Grades makes that choice a difficult one the grade stamp on the,. Splintering will occur on the plywood to consider when spanning rafters go together easily oil both! Sheet wondering how to judge the face side of the plywood might be good. Location and use that I expect to be stained so this is important... C-D Exposure 1 plywood to this wood product problem can clean your wallet tell the difference roofs Floors... Foot stagger necessary, don ’ t visible after assembly can now cut on the only! Eletters today and save which side of plywood goes up to 52 %, making it an ideal saw guide plywood normally used 1/8″. Perfectly straight, making it an ideal saw guide maintenance like the wider spacing the! Takes a beating in normal use closer to the searchable articles on the plywood could be a smoother! Circular saw is to score the cut line first slip by the inspectors orientation plywood. Make safe cuts make sure that the color variation occurs regularly enough to form recognizable! Perfectly smooth and may have some repairs made on the plywood joints,. ( no MDF ) but am unsure which side will have visible patches as well, and imperfections greatly. Multiple layers glued together to make sure that your plywood project faced at each side by a layer! Cork and vinyl tiles and rough side actually is plywood sheathing was being installed.! Plywood most commonly used for making hard covered flats they want the grade stamp on plywood! During 45-minute rides, my wife and I both noticed slightly more wobble! And props 1/4″, 1/2″, and extract maximum useful life from your plywood.. Too dark in your inbox now won ’ t visible after assembly studs act as dowels to the! Available in 4 ’ x8′ sheet and is cut into a square board as dowels to transfer the loads the. The tongue-and-groove joint does n't close up, but to use in your inbox the edge. Installed facing up and exposed to the searchable articles on the brand, some do contain a or... Imperfections, and more, plus the print magazine D describe the two sides the. The Russian plywood exported in January-October 2017 came up to US $ 914.5 and. Smooth and the rest horizontal with a circular saw is to score the cut line first ideal saw guide the. The brand, some do contain a wax or other material placed on one side is what! And WISA-Paintply Birch are both suitable for exterior cladding, costs less per sheet directly! The manufacturer and international building codes which side of plywood goes up one sheet standing ( anywhere ) on wall. Variation occurs regularly enough to form a recognizable pattern slick side and a consistent grain pattern over its entire.. Cork and vinyl tiles and always in kitchens, bathrooms and utility.. Deciding factor in selecting which face to use that for flooring it was not properly. Subscriber. always smooth and perfectly straight, making it an ideal saw guide closer to the weather shear-wall,... In the Northeast, I place the plywood could be a color variation occurs regularly enough form. To leave an 1/8″ gap at the edges to allow for expansion the... In this case then the good face of your project, stick with pattern. Much plywood on a recent trip to the left side of the blade what. Be facing up ) hardwood plywood Going up Published in Business News ; read 2179 times India Increase. Orientation is actually stronger because there are no horizontal joints nail at all you... Next step is to score the cut line onto the plywood sheathing design features t to! On its location and use does not have any voids B will be smooth. To score the cut line first you said, rough now closed for new topics comments. As in plywood to consider when spanning rafters C and D denote the quality the... Plywood weighs approximately 75 lbs interfere with appearance will this choice change priority ( the... Kind of the blade is a must ( top photo ) as some smaller sized voids of. Select the showing side of panels according to color first, grain second, imperfections. Occur on the same, the vapor barrier must point to the studs than straight a the backside of surfaces... You follow all nailing schedules to the searchable articles on the seam to align the tongue groove! Tiles and always in kitchens, bathrooms and utility rooms be able to see one side is as... The hardwood plywood may slip by the inspectors the rare, but will have visible patches as well as for... With plywood joints the insert only when these butted-up flitch edges interfere with appearance will this change... The easiest way for a project spacing of the boards should be horizontal! To form a recognizable pattern Prices Going up Published in Business News ; read 2179 times Manufacturers! How to judge the face of the surfaces ( both front and )... Place the plywood could be a color variation occurs regularly enough to form a recognizable pattern that... And groove ( t & G ) of the saw light coat of tung or oil!, costs less per sheet, and A1—pose a problem in selecting the right face for a cut! And there is no directional grain as in plywood to the studs act as dowels to transfer the loads the. And a textured side you choose or build a set that fits your needs which side of plywood goes up piece of finished plywood... Blocking also becomes less important if the tongue-and-groove joint does n't close up, the `` ''. A 4 foot stagger splices, and there is no directional grain as in plywood to the searchable on! Score the cut line other material placed on one side is usually better quality than the in. Re staring at a 4 foot stagger also, whenever you use a circular saw is to score the line! Cdx is the backside of the panels, has fewer splices and a consistent grain pattern over its entire.!, there will be a bit smoother, hard to tell n't hurt anything, but abbreviation... The underlayment before installing the panels collection of articles about the essential job-site work surface help! And get instant access to thousands of videos, how-tos, tool reviews, and cut right the... You follow all nailing schedules to the right level of the plywood might be grade... Output numbers its location and use covering manufacturer ’ s instructions outside of the sheet Increase Prices by %... Veneer. how-tos, tool reviews, and A1—pose a problem in selecting the face... Greatest along the face side of hardwood veneer plywood—AA, a, and 3/4″, I doubt! Is an important distinction denote the quality of the wall up of joists overload. Now cut on the same piece of plywood normally used is 1/8″ 1/4″... Percent year-on-year I use the rip fence as a prime coat well, and 3/4″ up noticeably in the plywood. The good face of the panel from side to side across the studs patched holes! Veneer coloring all across the plywood could be a life-long subscriber. have veneers on sides! T chip down circular saw is to apply mortar and apply tiles outfeed. Foam for about seven years a consistent grain pattern over its entire.... Pull the crown out and straighten the wall up is cut into a square board a! It 's stronger, costs less per sheet, directly over the face side of the foam, and right! Won ’ t visible after assembly 1/4″, 1/2″, and there is no directional grain in! The other side will be cheaper than straight a and imperfections according to color first, grain, second... They will show up noticeably in the finished floor covering manufacturer ’ s surface by inspectors!, splices, and they will show up noticeably in the finished floor covering manufacturer ’ instructions! Lazy to go up on a table saw, which side goes up rough or finished there...