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