If you decide to go with luxury vinyl plank (float or single-glue down) that is 4mm or thinner, QuietWalk Luxury Vinyl underlayment is an excellent option. Issue 286 - Oct/Nov 2019. Other times, some use waterproof underlayment for the flooring. In some Sub-floors, it may not be necessary, but with a concrete sub-floor, it is a requirement. For wood subfloor, a moisture barrier is unnecessary, but underlayment can provide cushion. Press J to jump to the feed. What Underlayment is Suitable on Concrete? This is particularly important if your old sub floor has lumps and bumps in it. When installing vinyl plank flooring over existing floor materials, underlayment may not be required, but it can help with cushioning and sound reduction. Underlayment on concrete subfloors will also give them a softer feel to walk on. In this question, that's undetermined. Flooring Over Plank Subfloor Whether or not you need plywood underlayment under engineered wood flooring depends on the condition of the original subfloor. It works over concrete or wood subfloors to prevent decay. We decided then to remove the plywood underlayment, as this was at the same level of the existing installed hardwood floors, and laying new 3/4in hardwood floors over that playwood would have created an eyesore of a step off. Any other things I should consider? In most cases 4-by-8-foot sheets of particle board or plywood must be installed in preparation for the vinyl floor install. Who Makes The Best Chainsaw In The World? Doug. Install a layer of at least ½” or preferably 5/8” ply over the existing planks. One that can smoothly go over concrete hiding small imperfections. The underlay can act as a barrier to prevent too much heat being absorbed to the top flooring. You should, however, look out for some properties in the underlayment for the vinyl plank flooring in the concrete sub-floor. No need for paper. Importance of Underlayment on Concrete Sub-floor. A subfloor is the layer of flooring that provides structural support. Well, underlayment is like butter or the sandwich to your two pieces of toast (speaking in cooking terms). Underlay comes in-between the sub-floor and the top flooring. I'd probably nail or screw into the joists and use some shorter screws in between the joists to the subfloor. But which is the best underlayment for vinyl … For example, if you install resilient tiles or sheet flooring over a subfloor, any bumps, dips, or voids in the subfloor may be evident in the finished flooring. When installing the plywood underlayment over the planks, should that be secured into the joists as well? June 24, … That doesn’t mean you don’t need underlayment for sheet vinyl, however. Like chubbygrouch says nails are OK. If you want to screw rule of thumb is take the thickness of the subfloor and double it, you want something at least that long. It comes in different models and designs serving a couple of functions. 3. Then I bought about 50 sheets of CCX ply and lots of subfloor glue. I had concerns about it being slippery but vinyl planks are staying in place. Unlike a subfloor, this material is not meant to serve a structural function, but it does provide a suitable surface for the flooring that will be installed above it. Read on. I have used two different underlayment over concrete in the past and modutile is the better product. Underlayment covers subfloor flaws … Regarding 90% fasteners in joists, when attaching the ply underlayment, should I only really be trying to hit the joists (not some in between the joists at all just in the subfloor? One with a built-in vapor barrier to prevent moisture entering from the concrete to the vinyl plank. Throughout the living room + bedrooms there are various types of other flooring that I plan on ripping out down to the plank subfloor to start from a clean slate. There are a wide variety of types and makes of underlayment out there serving several purposes like flooring for bedroom, flooring for hall room, flooring for bathroom, kitchen and so on . Also consider your floor joist width and span. Repair any broken planks. Vinyl floors that are glue down or loose lay will not need a vinyl underlayment, as these floors will be installed directly over the subfloor. Going to be primarily laminate flooring. Underlayment's comes between the sub-floor and the top floor to create perfect and most especially durable flooring. On-grade — An on-grade floor is in direct contact with the ground or over a fill in direct contact with the ground. Friction between the feet and the concrete subfloor can cause wear and tear, and as such the vinyl plank starts filing out. I'm in the process of remodeling my 1950s house that has plank subflooring (1/2" or 3/4" not exactly sure). It is one of the most important factors you consider in your choice of underlayment on a concrete floor. I'm planning on using 1/2" plywood for the new underlayment. Also consider this before you make a purchase. Press question mark to learn the rest of the keyboard shortcuts. Subfloor underlayment tiles from Modutile and Vinyl planks over the underlayment. Because you can install sheet vinyl over existing vinyl, it offers the option of changing design without breaking the bank. Installing plywood underlayment over old plank subfloor I'm in the process of remodeling my 1950s house that has plank subflooring (1/2" or 3/4" not exactly sure). In the winter time this can be quite the annoyance because who likes cold feet? Things to take into account when laying ply over plank subfloors: Take time to make sure your existing planks are well secured in place. An underlayment that supports the weight and is durable. Read on. Now I had a very stout floor about 2" thick.... Ditra over that, tile over that. It's best to go for something that is not super complicated to install. This means if you want something like laminate or vinyl planks, the concrete sub-floor will actually make your planks colder as well. Patch up any holes or open spaces to make it level. It is one reason why using underlays is perfect for your concrete subfloor. Vinyl Tile Sometimes in concrete flooring, a combination underlayment (a vapor barrier that is put after the main underlayment before the flooring) is even used. Concrete Subfloor When installing over a concrete subfloor, consider the fact that it's a really hard surface so you might want an underlayment with some added cushion. The floor has tons of squeaks currently, so while I've got the planks exposed I want to take care of that. For your other questions, yes attach the ply to joists, and glue it with subfloor adhesive. While you must have chosen a perfect underlayment a suitable vinyl plank completes the job. Because concrete seeps out moisture always, some underlayment is designed with built-in moisture barrier others are not. Vinyl flooring is usually not installed directly over the subfloor in residential applications. generally underlays are useful to buffer the impact of sounds that results from the friction of the soles of the feet and the top floor and flooring. Do you need an underlayment for vinyl plank flooring on wood I would just fasten with ring shank 8d nails. Ensure that the underlayment is not made from toxic materials, hazardous to health. Underlays are designed to cushion the feet and make walking easier. New comments cannot be posted and votes cannot be cast. There was a parquet floor that was ripped off and *most* of the black glue was scraped off, however there are still hundreds of small 'bumps' in the ~200sq ft. area. Quick Steps on Installing Underlayment over Concrete, Factors to Consider When Buying a Flooring Underlayment, right flooring transition and set to the right place, Best Chainsaw Under 200 [Budget Friendly High Rated Saw]. The type of underlayment you should use depends on the subfloor and whether it's concrete, plywood, or an existing flooring material. While using it is overkill, and may not be necessary for some subfloors, in subfloors like concrete, it is a necessity. Suspended — A suspended floor is one with a minimum of 18" of well-ventilated air space below. I plan to do same for other rooms in the basement. "Underlayment" is the term for the layer of material running in between the subfloor and the finished floor. This leaves me with some questions: What type/size screws should I use to re-secure the planks into the floor joists? 2 Step Installation Process by Product. Timber-framing, framing, trim, fascia, soffits, and the myriad jobs a carpenter undertakes are all subjects worthy of discussion. No wonder an underlayment not just any type, one that is waterproof is highly needed in a concrete subfloor. Underlayment help achieve a perfect, smooth, sound resistant, classic flooring.Underlayment should help to overcome subfloor imperfections. Depending on what flooring you're putting down you might want to consider floor level and flatness at this point before attaching the ply. You begin to see cracks and moulds and the vinyl plank starts pulling off or breaking out. First, it will give you some added cushion to help make the floor softer to walk on. Get all about Sawzall Vs Reciprocating Saw: Explore Deference, Milwaukee Chainsaw Review [Special for M18 Fuel Chainsaw]. If using S-1841 underlayment in these areas the underlayment must be adhered to the subfloor and the LVT adhered to the underlayment. Concrete can also become heated up and heat transmitted to the vinyl planks. You ask. If you are installing your vinyl plank flooring over a concrete subfloor, you may want to use an underlayment for three reasons. Want to know more about underlayment for vinyl plank flooring on concrete? Should I install some kind of paper / moisture barrier above the planks? Vinyl underlayment is an optional add on to click lock vinyls that are 4mm or thicker. In concrete subfloors, moisture usually sips from the ground to the concrete, and when this gets to the top flooring it spells disaster. I glued and nailed ply over the entire floor using shanked dipped nails. You have a few options: Grind the floor, use a self-leveling compound, or use a subfloor to get it pretty close to even as possible. Chapter 3 — Subfloors and Underlayments Subfloors and Underlayments A. GRADE LEVELS 1. Regarding floor level + flatness, what should I consider? This is a subreddit dedicated to the practice of carpentry in all its forms. If you’re installing it over concrete and you have a question about moisture issues, consider adding a vapor barrier underlayment first that will product against water problems. Then I got decking screws and screwed the planks down everywhere they were already nailed. My experience is no, too much bounce. Concrete floors in basements are often cold to the touch. Much has been said, to wrap things up; let's hit on some final points: we have talked about the properties of concrete and how moisture seeps in. You have got this beautiful vinyl plank to layout and just about to do so, but wait, you seem to have something missing, your underlayment. Choose something durable, affordable and easy to install. 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