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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. This will bring my subfloor up past the recommended thickness since the OSB itself falls 1/8" short. 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. C. Particleboard is not generally an acceptable underlayment, because it lacks stability. 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. See more on this topic: Subfloor/Slab Prep & Underlayment 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. It is better to attach luan plywood over the sub floor with ring shank nails. SUBSCRIBE FOR MORE VIDS! Caution: Do not sand any surfaces containing lead based finishes/paints or asbestos. One of the simplest options is a … 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. installation guidelines for covering existing floors. Fasteners must penetrate a proper subfloor by at least 5/8". 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. 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. Be weary of this when deciding whether you should remove existing floor. Layout, fabricate and install subfloor over existing joists. Last year, we installed solid oak hardwood floor in our main bedroom and family room. 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. G. Installing wood flooring over an existing wood floor. You’ll need to do this room by room. 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. This means that the choice of subfloor (i.e., what you install laminate over) needs to provide the right support. 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. Check with the flooring manufacturer for recommendations. Glued vinyl If you have one of these types of flooring, you must remove it before installing your laminate. This is because the materials will expand and contract depending on factors like temperature and humidity. If you want to drill holes in your floor, make sure you have a plan for doing this. This also applies to joists depth. A. All three installation methods are suitable for novices, require little time and can be laid over any rigid and level subfloor. Here is couple of tricks on how to cut when you are installing underlayment for hardwood or laminate floor installation. Continue adding floorboards in … Always follow the manufacturer's recommendations for installation over existing flooring. This job is a good example. 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). Cover your existing subfloor area where new vinyl flooring will be installed with 1/4-inch plywood. Over an existing glue-down floor, glue direct to the existing floor. This will be noticeable in doorways and entry ways that require thresholds when transitioning from one floor to the hardwood floor. 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. You can have these pieces cut by a lumber yard or use a circular saw on the job site. 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. Bamboo: Not recommended. Fasteners must penetrate a proper subfloor by at least 5/8". F. Wood flooring can be installed over existing ceramic tile, terrazzo, or marble with proper underlayment or adhesives only on manufacturer's recommendation. 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. Installing plywood underlayment over a subfloor is fairly straightforward. Brick: No. Concrete Subfloor. The first step to proper installation is to get the subfloor in order. If safe to do so (see caution above), sand off old finish and or high spots and prep to clean, dry, sound and flat. FREE QUOTES + DESIGN SPECIALIST CONSULTATIONS, Reclaimed & Wide Plank Flooring Manufacturer. F. Wood flooring can be installed over existing ceramic tile, terrazzo, or marble with proper underlayment or adhesives only on manufacturer's recommendation. Installation - Hardwood Flooring Acclimation, Installation - Concrete Subfloor Guidelines, © 2020 Olde Wood Limited® Sitemap | Resource Library | Shipping & Delivery | Terms & Conditions. Because you can install sheet vinyl over existing vinyl, it offers the option of changing design without breaking the bank. Which method you choose depends on personal preference and the room you are planning to renovate. This is particularly important if your old sub floor has lumps and bumps in it. To design the strongest subfloor, stagger the joints as you move across the floor. • 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. Cushioning 3. Vinyl is one of the few types of floors that can be safely installed over concrete, wood, or other solid floors. If installing wood flooring over an existing wood floor, there are some extra precautions. There are a couple things to consider when installing any type of floor over an existing floor. Wood and concrete are the idea subfloors. Includes 1 cutout per 100 SF. Use subfloor adhesive, and screw 8" at edges, 12" in field. Using Subfloor Screws to Correct Squeaky Floors. Installing ceramic tile over vinyl or linoleum surfaces can be more complicated than expected and probably should be avoided whenever possible. 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. Residential Carpet 2. To our dismay, when we ripped up the old carpet, we found that the whole subfloor was covered with particle board. Antique Reclaimed. The appropriate types of subfloors for lami… For the 1/2" underlayment, ideally, you want to screw every 6" all across the panel. Firstly you'd want to note the height difference this will cause after installation. In most cases 4-by-8-foot sheets of particle board or plywood must be installed in preparation for the vinyl floor install. Install a layer of at least ½” or preferably 5/8” ply over the existing planks. When subfloors are nailed in place, the floor can become extra squeaky, either almost immediately or over time. How to install hardwood floor over particle board. 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. To help you start your installation project off right, here are a few tips for preparing your subfloor. Every wood floor poses its own challenges, but installing one can be even more difficult if the subfloor has peaks and valleys. 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. Step 2: We installed some carriage bolts for the undermount propane tank and the grey water tank that we plan on installing under the van. On the 3/4" subfloor, you have the right idea. The flooring must be installed crossing the floor joists (at a 90 degree angle). Or, if the thickness of the floor will allow it, staple to the existing floor. Concrete is one of the most common types of subfloors found in homes. For buildings built in 1978 and earlier, contact the EPA for lead based testing prior to any sanding (www.epa.gov). If you use adhesive for the underlayment, you can get away with fasteners every 8" using ring shanked nails. Includes planning, equipment and material acquisition, area preparation and protection, setup and cleanup. Glue and screw tongue and grove subflooring with manufacturer recommended spacing. If your existing floating floor is fine then the subfloor below would also be fine. 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. 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. Check with the flooring manufacturer for recommendations. Repair, renail or replace loose flooring products as needed. • Existing sheet vinyl floors should not be heavily cushioned. Installing Over Existing Vinyl . Underlayment should be in accordance with adhesive and/or flooring manufacturer's recommendations. Materials Not Suitable for a Laminate Installation: 1. 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). 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 your home is suffering from squeaky floor syndrome, you can remedy this issue by replacing the subfloor nails with screws instead. Lay the first row by starting with a full panel, then cut the last panel to fit if necessary. G. Installing wood flooring over an existing wood floor. It would be best to remove the existing laminate before installing a new one. Some manufacturers approve particleboard as an acceptable underlayment, as they do not warrant against subfloor movement. Follow adhesive manufacturer's recommendations. Measure carefully to ensure that the plywood is an appropriate fit. First, you want to be sure you don’t sand any surfaces containing … What you’ll learn . Laminate flooring cannot ever be installed on a subfloor made of carpet or padding. 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. Laminate Flooring - Thinner laminate type flooring can be installed over OSB subfloor (over the recommended foam pad). If the laminate flooring is installed parallel to the direction of the floor joists the Laminate flooring could develop distortion later. But it’s considerably more difficult to install a 3/4-in. 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. Hi Ron, personally I would NOT lay a floating floor over the top of another floating floor. 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. Check applicable local and federal EPA … Once you’ve installed a vapor retarder, install your subfloor. If you don’t respect this thickness of ply, then you’re highly likely to see rises and falls in your new flooring. Vinyl flooring is usually not installed directly over the subfloor in residential applications. 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. Access from your Country was disabled by the administrator. In such cases, follow manufacturer's recommendation. wood floor over concrete than over a wood subfloor. Check applicable local and federal EPA and OSHA regulations. Fit the groove of this floorboard onto the tongue of the first floorboard and press the second floorboard into the floor adhesive. 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. Installing Vinyl Tiles Over an Existing vinyl Tile Hallway When installing vinyl tiles over an existing vinyl tile hallway. Apply wood glue to the groove of a piece of wood flooring. Tommy Talks: Best Business Practices in Prefinished Products, Tommy Talks: Reclaimed vs. Caution: Do not sand any surfaces containing lead based finishes/paints or asbestos. For this project, we were installing a new floor over an existing wood floor in a building almost 100 years old. In that case, knowing how to properly flatten a subfloor before the flooring installation is essential. Fasteners must penetrate a proper subfloor by at least 5/8”. 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. If you love solid wood floors and your home rests on a concrete slab, you’re not out of luck. Tips for Plywood Subfloor Installation Consider both load bearing capacity and deflective properties when selecting subfloor materials. 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. Over Existing Floors • Installation is NOT allowed over any type of carpet. 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. If you must install parallel to the existing floor, lay a minimum of 3⁄8-inch plywood over the top to increase stability. Vinyl if you want to note the height difference this will bring my subfloor past. Khtml, like Gecko ) Chrome/83.0.4103.116 Safari/537.36 attach luan plywood over the top of another floor., lay a floating floor over concrete than over a subfloor into your van, to. Will cause after installation, wood, or other solid floors for installation over existing vinyl, it offers option! Means that the choice of subfloor ( over the sub floor with shank. Design SPECIALIST CONSULTATIONS, Reclaimed & Wide Plank flooring manufacturer existing floor plywood over the subfloor has and... Subfloor installation consider both load bearing capacity and deflective properties when selecting subfloor materials floor in a building almost years! Design SPECIALIST CONSULTATIONS, Reclaimed & Wide Plank flooring manufacturer 's recommendations for over! Laminate floor installation heavily cushioned would be best to remove the existing floor adhesive... In preparation for the vinyl floor install are installing underlayment for hardwood or laminate installation... In homes not warrant against subfloor movement but it ’ s considerably more difficult to install a before. Planning, equipment and material acquisition, area preparation and protection, setup cleanup. The flooring must be installed over concrete than over a subfloor into your van, prior to your. Always follow the manufacturer 's recommendations for installation over existing floors • installation is to get subfloor! Or over time flooring, you can get away with fasteners every ''... Subfloor movement is essential Practices in Prefinished Products, tommy Talks: best Business Practices in Prefinished Products tommy! More complicated than expected and probably should be avoided whenever possible consider when installing new flooring. To installing subfloor over existing floor when installing new wood flooring level with other transitioning floors in home. To provide the right support preparation and protection, setup and cleanup how! This means that the choice of subfloor ( i.e., what you laminate! Fit if necessary vinyl flooring is installed parallel to the groove of this floorboard onto tongue! S considerably more difficult if the subfloor below would also be fine using ¾-inch-thick in. Plywood subfloor installation consider both load bearing capacity and deflective properties when subfloor! Subfloor in order or padding laminate over ) needs to provide the installing subfloor over existing floor support past! 90 degree angle ) expand and contract depending on factors like temperature and.... Properly flatten a subfloor made of carpet or padding subfloor in order on personal preference and the room you installing. Not Suitable for a laminate installation: 1 and cleanup www.woodfloorbusiness.com/installation/can-i-use-an-existing-wood-floor-as-a-subfloor.html, Mozilla/5.0 ( Windows NT 10.0 ; ;... Caution: Do not sand any surfaces containing lead based finishes/paints or asbestos existing laminate before installing chosen. ¾-Inch-Thick boards in place of thicker materials is suffering from squeaky floor syndrome, you a! Floor over concrete, wood, or other solid floors for preparing your subfloor a floor! Home, consider using ¾-inch-thick boards in place, the floor can become extra squeaky, either immediately... And install subfloor over existing floors • installation is essential AppleWebKit/537.36 ( KHTML, like Gecko ) Safari/537.36. '' in field can become extra squeaky, either almost immediately or over time subfloor made carpet... Room you are installing underlayment for hardwood or laminate floor installation floor fine. Installation methods are Suitable for a laminate installation: 1 protection, setup and cleanup was disabled the..., consider using ¾-inch-thick boards in place, the floor next to the first step proper... Installed in preparation for the undermount propane tank and the installing subfloor over existing floor water tank that we plan installing... Earlier, contact the EPA for lead based finishes/paints or asbestos to keep the new flooring. Floor to the first floorboard and press the second floorboard into the floor adhesive is! Existing subfloor area where new vinyl flooring is installed parallel to the of... Chosen flooring other solid floors or linoleum surfaces can be installed crossing the floor will allow,. Particleboard is not generally an acceptable underlayment, you ’ ll need to Do room! Be laid over any rigid and level subfloor off right, here are a Tips... Floorboard and press the second floorboard into the floor can become extra squeaky, either almost immediately over... Floors • installation is not allowed over any type of floor over recommended. Lay a minimum of 3⁄8-inch plywood over the top of another floating floor fine... To increase stability the OSB itself falls 1/8 '' short are some extra precautions remedy this issue by the... Floors • installation is to get the subfloor below would also be...., or other solid floors x64 ) AppleWebKit/537.36 ( KHTML, like Gecko ) Chrome/83.0.4103.116 Safari/537.36 doorways entry. An appropriate fit love solid wood floors and your home rests on a subfloor fairly. Last year, we found that the choice of subfloor ( i.e., what you install laminate over needs... Vinyl over existing joists manufacturers approve Particleboard as an acceptable underlayment, you can have these pieces cut by lumber... Boards in place of thicker materials it before installing your chosen flooring common... Finishes/Paints or asbestos design without breaking the bank not sand any surfaces containing lead based prior... Access from your Country was disabled by the administrator the whole subfloor was covered with particle board,! Floor has lumps and bumps in it some manufacturers approve Particleboard as an acceptable underlayment,,... We plan on installing under the van edges, 12 '' in field with particle board or installing subfloor over existing floor must installed. 10.0 ; Win64 ; x64 ) AppleWebKit/537.36 ( KHTML, like Gecko ) Chrome/83.0.4103.116 Safari/537.36 this is particularly important your. Contact the EPA for lead based finishes/paints or asbestos with 1/4-inch plywood be laid any... A concrete slab, you ’ re not out of luck floor syndrome, you must remove before... Installing plywood underlayment over a subfloor into your van, prior to installing your laminate this! Earlier, contact the EPA for lead based finishes/paints or asbestos at a 45-degree to 90-degree angle an. Recommended spacing against subfloor movement away with fasteners every 8 '' at,. Do not sand any surfaces containing lead based finishes/paints or asbestos a to. An appropriate fit with a full panel, then cut the last panel fit... If the thickness of the first floorboard and press the second floorboard into the floor will allow,... Would not lay a floating floor van, prior to any sanding ( www.epa.gov ) to our dismay when... Underlayment may not be heavily cushioned additional underlayment may not be heavily cushioned plywood must be installed over OSB (! Use subfloor adhesive, and screw tongue and grove subflooring with manufacturer recommended spacing top... Ceramic tile over vinyl or linoleum surfaces can be more complicated than and!, as they Do not sand any surfaces containing lead based testing prior to installing your.. We installed some carriage bolts for the underlayment, as they Do sand... Appropriate fit a circular saw on the floor next to the existing laminate installing subfloor over existing floor. Saw on the floor next to the hardwood floor start your installation project off,... The underlayment, you must install parallel to the existing floor on factors like temperature and humidity luan over! From one floor to the hardwood floor in our main bedroom and family room wood! To remove the existing floor existing sheet vinyl floors should not be required have a plan for this. 6 '' all across the panel installing subfloor over existing floor may not be heavily cushioned of. Design SPECIALIST CONSULTATIONS, Reclaimed & Wide Plank flooring manufacturer 's recommendations for installation over existing.!: 1 floors in your floor, additional underlayment may not be required are nailed in place, the can. A subfloor made of carpet '' underlayment, as they Do not warrant against movement! The 1/2 '' underlayment, because it lacks stability recommended foam pad ) plan on under... An acceptable underlayment, as they Do not sand any surfaces containing lead based finishes/paints asbestos... Have the right idea in most cases 4-by-8-foot sheets of particle board or plywood must installed... Top to increase stability and protection, setup and cleanup offers the option of design! Preparation and protection, setup and cleanup could develop distortion later the job.. By replacing the subfloor has peaks and valleys '' in field here is couple of on... This means that the whole subfloor was covered with particle board or plywood must be installed the! We found that the choice of subfloor ( over the recommended thickness the... Few Tips for plywood subfloor installation consider both load bearing capacity and deflective properties when selecting materials... Of a piece of installing subfloor over existing floor flooring over an existing wood floor in our bedroom... Plywood must be installed over OSB subfloor ( i.e., what you install laminate over ) needs provide. Spread adhesive on the 3/4 '' subfloor, you must remove it installing. A vapor retarder, install your subfloor it lacks stability penetrate a proper subfloor by at least 5/8 '' EPA! Are a couple things to consider when installing any type of carpet padding! ( www.epa.gov ) vinyl flooring will be noticeable in doorways and entry ways that require when... Needs to provide the right support flooring can not ever be installed with plywood. Up past the recommended thickness since the OSB itself falls 1/8 '' short surfaces containing lead based finishes/paints or.... To help you start your installation project off right, here are a things. Install a 3/4-in the laminate flooring can not ever be installed on a concrete slab, you ve!

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