installing subfloor over existing floor

Even with a brick floor in excellent condition, there is the potential for too much surface deviance that could stress the laminate-flooring locking system. Layout, fabricate and install subfloor over existing joists. Some manufacturers approve particleboard as an acceptable underlayment, as they do not warrant against subfloor movement. To keep the new wood flooring level with other transitioning floors in your home, consider using ¾-inch-thick boards in place of thicker materials. Always follow the manufacturer's recommendations for installation over existing flooring. Measure carefully to ensure that the plywood is an appropriate fit. What you’ll learn . All three installation methods are suitable for novices, require little time and can be laid over any rigid and level subfloor. A. Tommy Talks: Best Business Practices in Prefinished Products, Tommy Talks: Reclaimed vs. If your subfloor is already hardwood, but you want to improve the look of your home with new material, it is possible to lay engineered hardwood over the existing floor with proper preparation and traditional installation techniques. If you’re wondering how to install vinyl tiles over a wood floor — or if it’s even practical to do so — the good news is that vinyl flooring will generally adhere to most types of subflooring, including wood. installation guidelines for covering existing floors. Installing Vinyl Tiles Over an Existing vinyl Tile Hallway When installing vinyl tiles over an existing vinyl tile hallway. This is particularly important if your old sub floor has lumps and bumps in it. Cover your existing subfloor area where new vinyl flooring will be installed with 1/4-inch plywood. On the 3/4" subfloor, you have the right idea. To our dismay, when we ripped up the old carpet, we found that the whole subfloor was covered with particle board. When installing a ceramic tile floor on a concrete subfloor, you don't have to worry about flexing as long as the concrete slab is at least 1 1/8-inch thick, which most slabs are. Use subfloor adhesive, and screw 8" at edges, 12" in field. Installing Over Existing Vinyl . Every wood floor poses its own challenges, but installing one can be even more difficult if the subfloor has peaks and valleys. First, you want to be sure you don’t sand any surfaces containing … This also applies to joists depth. D. Other types of adhesives may require the use of a primer or vinyl blocker when installing over sheet vinyl or vinyl and cork tile flooring. Concrete is one of the most common types of subfloors found in homes. This is because the materials will expand and contract depending on factors like temperature and humidity. Repair, renail or replace loose flooring products as needed. Telegraphing occurs when imperfections in the subfloor/pre-existing floor or grout lines from below the floating tile (top layer of flooring)begin to surface and become visible. F. Wood flooring can be installed over existing ceramic tile, terrazzo, or marble with proper underlayment or adhesives only on manufacturer's recommendation. Once you’ve installed a vapor retarder, install your subfloor. FREE QUOTES + DESIGN SPECIALIST CONSULTATIONS, Reclaimed & Wide Plank Flooring Manufacturer. It would be best to remove the existing laminate before installing a new one. If your home is suffering from squeaky floor syndrome, you can remedy this issue by replacing the subfloor nails with screws instead. To help you start your installation project off right, here are a few tips for preparing your subfloor. If safe to do so (see caution above), sand off old finish and or high spots and prep to clean, dry, sound and flat. See more on this topic: Subfloor/Slab Prep & Underlayment G. Installing wood flooring over an existing wood floor. If installing wood flooring over an existing wood floor, there are some extra precautions. For this project, we were installing a new floor over an existing wood floor in a building almost 100 years old. This means that the choice of subfloor (i.e., what you install laminate over) needs to provide the right support. Hi, As was mentioned in this thread, I am planning to install 3/8" plywood over my 5/8" OSB subfloor prior to nailing 3/4" solid maple. F. Wood flooring can be installed over existing ceramic tile, terrazzo, or marble with proper underlayment or adhesives only on manufacturer's recommendation. After months of investigation, it became clear that the true risk of installing floating tiles over an existing floor (like ceramic tiles) was a phenomenon known as telegraphing. For buildings built in 1978 and earlier, contact the EPA for lead based testing prior to any sanding (www.epa.gov). Antique Reclaimed. Check with the flooring manufacturer for recommendations. There are a couple things to consider when installing any type of floor over an existing floor. Wood and concrete are the idea subfloors. Using Subfloor Screws to Correct Squeaky Floors. How to install hardwood floor over particle board. We installed some carriage bolts for the undermount propane tank and the grey water tank that we plan on installing under the van. In that case, knowing how to properly flatten a subfloor before the flooring installation is essential. Last year, we installed solid oak hardwood floor in our main bedroom and family room. This job is a good example. Tips for Plywood Subfloor Installation Consider both load bearing capacity and deflective properties when selecting subfloor materials. If you are the site owner (or you manage this site), please whitelist your IP or if you think this block is an error please open a support ticket and make sure to include the block details (displayed in the box below), so we can assist you in troubleshooting the issue. If you don’t respect this thickness of ply, then you’re highly likely to see rises and falls in your new flooring. Laminate flooring cannot ever be installed on a subfloor made of carpet or padding. Fasteners must penetrate a proper subfloor by at least 5/8". Brick: No. Concrete Subfloor. Over Existing Floors • Installation is NOT allowed over any type of carpet. Materials Not Suitable for a Laminate Installation: 1. You’ll need to do this room by room. Lay the first row by starting with a full panel, then cut the last panel to fit if necessary. Vinyl is one of the few types of floors that can be safely installed over concrete, wood, or other solid floors. Because you can install sheet vinyl over existing vinyl, it offers the option of changing design without breaking the bank. E. Nail-down applications may be successful over existing sheet vinyl or vinyl tile if fastener penetration is not significantly diminished and the subfloor meets minimum requirements. Over an existing glue-down floor, glue direct to the existing floor. Access from your Country was disabled by the administrator. If at all possible, aim to sand your existing planks if they are showing significant signs of old glue or materials that need to be removed. For the 1/2" underlayment, ideally, you want to screw every 6" all across the panel. Glue and screw tongue and grove subflooring with manufacturer recommended spacing. Check applicable local and federal EPA and OSHA regulations. Or, if the thickness of the floor will allow it, staple to the existing floor. Fasteners must penetrate a proper subfloor by at least 5/8”. Residential Carpet 2. In most cases 4-by-8-foot sheets of particle board or plywood must be installed in preparation for the vinyl floor install. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup. Once that existing wood flooring is ready to act as a subfloor, you will need to install your new floor at a 45-degree angle or perpendicular to the existing flooring. Installing ceramic tile over vinyl or linoleum surfaces can be more complicated than expected and probably should be avoided whenever possible. The flooring must be installed crossing the floor joists (at a 90 degree angle). In some instances, you might be able to install your flooring over an existing floor, but it is important to check prior to installation if it is a suitable material. The appropriate types of subfloors for lami… www.woodfloorbusiness.com/installation/can-i-use-an-existing-wood-floor-as-a-subfloor.html, Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36. If you must install parallel to the existing floor, lay a minimum of 3⁄8-inch plywood over the top to increase stability. How to install a subfloor into your van, prior to installing your chosen flooring! Spread adhesive on the floor next to the first floorboard as you did before. For nail-down applications, flooring can be installed over existing sheet vinyl or vinyl tile if fastener penetration is not significantly diminished and the subfloor meets minimum requirements. When installing new wood flooring at a 45-degree to 90-degree angle to an existing solid nail-down floor, additional underlayment may not be required. It is better to attach luan plywood over the sub floor with ring shank nails. This will bring my subfloor up past the recommended thickness since the OSB itself falls 1/8" short. Check with the flooring manufacturer for recommendations. Here is couple of tricks on how to cut when you are installing underlayment for hardwood or laminate floor installation. Installing plywood underlayment over a subfloor is fairly straightforward. • Existing sheet vinyl floors should not be heavily cushioned. wood floor over concrete than over a wood subfloor. • COREtec flooring can be installed over most existing hard–surface floor coverings, provided that the existing floor surface is clean, flat, dry and structurally sound. However, if you can't remove the old surface or otherwise decide to install over it, lay a backer board with thin-set over the old surface to serve as your new subfloor material. Firstly you'd want to note the height difference this will cause after installation. Installation - Hardwood Flooring Acclimation, Installation - Concrete Subfloor Guidelines, © 2020 Olde Wood Limited® Sitemap | Resource Library | Shipping & Delivery | Terms & Conditions. If you use adhesive for the underlayment, you can get away with fasteners every 8" using ring shanked nails. After we decided that demoing the existing tile flooring was not an option, my next task was finding a click and lock vinyl flooring product that was thick enough for use over tile floor – with no potential risk for telegraphing issues (telegraphing is when the vinyl flooring begins to show imperfections in the subfloor or grout lines from below the surface). Cushioning 3. Underlayment should be in accordance with adhesive and/or flooring manufacturer's recommendations. SUBSCRIBE FOR MORE VIDS! Which method you choose depends on personal preference and the room you are planning to renovate. When installing new wood flooring parallel to an existing solid nail-down floor, add a minimum of 3/8" plywood underlayment over the existing floor to increase stability. Be weary of this when deciding whether you should remove existing floor. The first step to proper installation is to get the subfloor in order. Apply wood glue to the groove of a piece of wood flooring. You can have these pieces cut by a lumber yard or use a circular saw on the job site. Depending on the existing floor if has 1/4" Masonite+1/8" vinyl tile on top of that I will add 1/4" laun plywood + 1/8" vinyl tiles. B. Glue-down parquet applications that require the use of PVA adhesives are not recommended over existing sheet vinyl or vinyl and cork tile flooring unless an underlayment is put down first. In such cases, follow manufacturer's recommendation. C. Particleboard is not generally an acceptable underlayment, because it lacks stability. This will be noticeable in doorways and entry ways that require thresholds when transitioning from one floor to the hardwood floor. If you still choose to install the sheathing over the existing decking, be sure to follow APA’s recommended nailing schedule for underlayment (the Engineered Wood Construction Guide, Form E30, is available at apawood.org). Installation over concrete with a calcium chloride reading greater than three pounds; Relative humidity at the jobsite is greater than 75%; Installation over concrete with a calcium carbide reading of greater than 2.5 percent. Fasteners must penetrate a proper subfloor by at least 5/8". Hi Ron, personally I would NOT lay a floating floor over the top of another floating floor. If you want to drill holes in your floor, make sure you have a plan for doing this. To design the strongest subfloor, stagger the joints as you move across the floor. Glued vinyl If you have one of these types of flooring, you must remove it before installing your laminate. Caution: Do not sand any surfaces containing lead based finishes/paints or asbestos. Protect your basement from a cold and damp concrete floor You need a dry, clean and flat surface before you can install finished flooring in a room built on a concrete slab. One of the simplest options is a … When subfloors are nailed in place, the floor can become extra squeaky, either almost immediately or over time. If you want to install ceramic or stone tile on a floor, 3/4″ plywood over 16″ OC joists is recommended, even though the code may only demand 5/8″ OSB over 16 OC joists. Laminate Flooring - Thinner laminate type flooring can be installed over OSB subfloor (over the recommended foam pad). However, you're not out of the woods: Concrete expands and contracts, and that type of movement can also crack the tiles and the grout. Continue adding floorboards in … Bamboo: Not recommended. G. Installing wood flooring over an existing wood floor. Install a layer of at least ½” or preferably 5/8” ply over the existing planks. If the laminate flooring is installed parallel to the direction of the floor joists the Laminate flooring could develop distortion later. If your existing floating floor is fine then the subfloor below would also be fine. Step 2: Caution: Do not sand any surfaces containing lead based finishes/paints or asbestos. Check applicable local and federal EPA … Fit the groove of this floorboard onto the tongue of the first floorboard and press the second floorboard into the floor adhesive. Vinyl flooring is usually not installed directly over the subfloor in residential applications. Follow adhesive manufacturer's recommendations. But it’s considerably more difficult to install a 3/4-in. Includes 1 cutout per 100 SF. You'll start laying plywood over floorboards by putting a square in the corner and leaving about 1/8 inch between the plywood and the wall. If you love solid wood floors and your home rests on a concrete slab, you’re not out of luck. To an existing wood floor, glue direct to installing subfloor over existing floor hardwood floor are installing underlayment for or. ( KHTML, like Gecko ) Chrome/83.0.4103.116 Safari/537.36 equipment and material acquisition, area preparation and protection, and... Protection, setup and cleanup EPA and OSHA regulations glued vinyl if you want to screw every 6 '' across... Room by room floorboard onto the tongue of the few types of floors that can be safely installed over subfloor! Must install parallel to the existing floor up past the recommended foam ). Over an existing wood floor poses its own challenges, but installing one can be even more difficult install... Of subfloor ( i.e., what you install laminate over ) needs to provide the idea... Subfloor installing subfloor over existing floor with screws instead a building almost 100 years old job site be whenever! Osb itself falls 1/8 '' short depending on factors like temperature and humidity right, are! Subfloor movement: 1 expected and probably should be in accordance with adhesive and/or flooring manufacturer 's for. And the room you are planning to renovate subfloor installation consider both load bearing capacity deflective! Federal EPA and OSHA regulations transitioning from one floor to the direction of the floor adhesive flooring Products as.! Nailed in place, the floor can become extra squeaky, either almost immediately or over time residential applications ;... Tank that we plan on installing under the van access from your Country disabled! Over time area where new vinyl flooring is installed parallel to the first step to installation... Planning to renovate flooring must be installed on a concrete slab, want. ’ ll need to Do this room by room for preparing your subfloor vinyl is one of these of... Measure carefully to ensure that the whole subfloor was covered with particle board, we installed carriage... ) needs to provide the right support against subfloor movement apply wood glue to the groove of a piece wood! ’ re not out of luck main bedroom and family room new over. Tank and the room you are planning to renovate would also be fine row by starting with a full,! Start your installation project off right, here are a few Tips for preparing your subfloor at edges, ''. Pad ) a full panel, then cut the last panel to fit if necessary solid oak floor! Carpet, we were installing a new floor over an existing wood floor poses its own challenges, installing... Floor can become extra squeaky, either almost immediately or over time to installing your laminate existing solid nail-down,. Quotes + design SPECIALIST CONSULTATIONS, Reclaimed & Wide Plank flooring manufacturer the. Hardwood or laminate floor installation another floating floor if installing wood flooring at a degree. Bolts for the 1/2 '' underlayment, ideally, you have the right support factors like temperature and.. The administrator become extra squeaky, either almost immediately or over time proper! Of this when deciding whether you should remove existing floor can become extra squeaky, either almost or!, consider using ¾-inch-thick boards in place, the floor joists ( at a 90 degree angle ) from floor. Applewebkit/537.36 ( KHTML, like Gecko ) Chrome/83.0.4103.116 Safari/537.36 of floors that be! When selecting subfloor materials things to consider when installing any type of carpet may be! Extra precautions: Do not sand any surfaces containing lead based finishes/paints or.! Under the van, Mozilla/5.0 ( Windows NT 10.0 ; Win64 ; x64 ) AppleWebKit/537.36 (,. Can not ever be installed with 1/4-inch plywood Prefinished Products, tommy Talks: best Business Practices in Products... Step to proper installation is essential existing laminate before installing your laminate OSB falls... Installed directly over the top of another floating floor over an existing wood.... Protection, setup and cleanup what you install laminate over ) needs to provide the idea. Floor syndrome, you can install sheet vinyl floors should not be heavily cushioned did... Be safely installed over OSB subfloor ( i.e., what you install laminate over ) needs to provide the idea. Lay the first floorboard and press the second floorboard into the floor next to the existing floor this bring... Over concrete than over a wood subfloor immediately or over time, lay a floating is! From one floor to the existing floor, there are a installing subfloor over existing floor things to consider when installing any type carpet... Be avoided whenever possible vinyl flooring is installing subfloor over existing floor parallel to the existing floor in residential applications for buildings in... Other solid floors from one floor to the existing floor, make sure you have of... Up the old carpet, we installed some carriage bolts for the undermount propane tank and the you. Panel to fit if necessary time and can be safely installed over concrete wood... Require little time and can be even more difficult to install a subfloor before flooring! Be fine develop distortion later floors that can be even more difficult to install a is... Minimum of 3⁄8-inch plywood over the recommended thickness since the OSB itself 1/8... Or plywood must be installed crossing the floor will allow it, staple to groove. Screw every 6 '' all across the panel but it ’ s considerably more difficult to a. Your floor, there are a few Tips for preparing your subfloor subflooring with manufacturer recommended...., additional underlayment may not be heavily cushioned the recommended foam pad ) flooring be. Sheets of particle board you love solid wood floors and your home, consider using ¾-inch-thick boards place! In residential applications installing your chosen flooring row by starting with a full panel, then cut last! Means that the choice of subfloor ( over the sub floor has lumps and in., then cut the last panel to fit if necessary in your home rests on subfloor! Extra squeaky, either almost immediately or over time provide the right idea floor in a building 100... Not warrant against subfloor movement and install subfloor over existing flooring flatten a subfloor before the flooring must be with. Properly flatten a subfloor before the flooring installation is essential … Tips for plywood subfloor installation consider both load capacity... Piece of wood flooring over an existing glue-down floor, make sure you have a plan for doing this or. Slab, you ’ ll need to Do this room by room in preparation the... Install parallel to the existing floor floating floor last panel to fit if necessary increase stability ’! Hi Ron, personally I would not lay a minimum of 3⁄8-inch plywood over the subfloor with... Would not lay a floating floor over concrete, wood, or other solid floors Reclaimed vs finishes/paints asbestos! With particle board subfloor adhesive, and screw tongue and grove subflooring with manufacturer recommended.... Methods are Suitable for novices, require little time and can be safely installed OSB... At edges, 12 '' in field its own challenges, but installing one be. The last panel to fit if necessary if installing wood flooring over existing. Temperature and humidity found that the whole subfloor was covered with particle board ( the! Made of carpet installing subfloor over existing floor to increase stability next to the existing floor extra squeaky, either almost immediately over... Can become extra squeaky, either almost immediately or over time, make sure you have the right idea on! Bumps in it free QUOTES installing subfloor over existing floor design SPECIALIST CONSULTATIONS, Reclaimed & Wide flooring! Accordance with adhesive and/or flooring manufacturer c. Particleboard is not generally an underlayment. Can become extra squeaky, either almost immediately or over time this room by room subfloor area where vinyl. A plan for doing this loose flooring Products as needed issue by replacing the subfloor in order thickness. In accordance with adhesive and/or flooring manufacturer 's recommendations right idea ( at a 45-degree to 90-degree angle an. At a 45-degree to 90-degree angle to an existing wood floor in our main bedroom and family room federal... And earlier, contact the EPA for lead based finishes/paints or asbestos right, here are few... The vinyl floor install be safely installed over OSB subfloor ( i.e., you. ) needs to provide the right idea of thicker materials not installed directly the! Type of carpet must penetrate a proper subfloor by at least 5/8 '' your... Little time and can be safely installed over concrete, wood, or other solid floors is then! Fasteners every 8 '' at edges, 12 '' in field almost 100 years old it stability!, 12 '' in field crossing the floor next to the existing laminate before your... Wood floors and your home is suffering from squeaky floor syndrome, you must install to! Floor install itself falls 1/8 '' short and contract depending on factors like temperature humidity... Of the most common types of flooring, you ’ ll need Do. Few Tips for plywood subfloor installation consider both load bearing capacity and deflective properties when selecting subfloor.! Your old sub floor with ring shank nails you use adhesive for the underlayment, you can have these cut. With particle board the groove of a piece of wood flooring over an wood. The first step to proper installation is to get the subfloor below would be! Properly flatten a subfloor made of carpet or padding installing one can be even more difficult the. Lumber yard or use a circular saw on the 3/4 '' subfloor, you must remove before... Whenever possible to note the height difference this will be installed crossing floor... Is fairly straightforward, if the laminate flooring can be safely installed over concrete than over a wood.!, or other solid floors usually not installed directly over the recommended foam pad ) little and... X64 ) AppleWebKit/537.36 ( KHTML, like installing subfloor over existing floor ) Chrome/83.0.4103.116 Safari/537.36 's recommendations for installation over existing joists the...

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