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. I live in central Oregon (high desert) with very low humidity (average 12%). When the subfloor is out of level, it moves. (A variety of widths and woods -- a house with a lot of layers.) The planks run diagonal to the floor joists. Gaps Related to Installation . When installing vinyl plank flooring, subfloor preparation is crucial since all uneven spots need to be leveled. Sara says. Why Do We Have Gaps? December 9, 2019 at 8:11 am. Wood subfloors are durable and designed to last, but the process of installing luxury vinyl flooring over wood is slightly more complex than concrete. Prior to the flooring being installed the wood planks need to be at, or close to the same moisture content as both the subfloor and the environment the flooring is going to be installed in. When installing the planks along walls, insert shims, which are tiny devices that will leave a slight gap between the flooring and the wall. Therefore, we recommend you to deposit the laminate packs in the room, for at least 48 hours before starting the installation process. Here's the story: bought an 1813 house in upstate new york. The sub-floor must be perfectly level. Months later, usually during the heating season, those gaps start to show up. To test your subfloor for moisture, you should always take a moisture reading. Solid 3/4" hardwoods will expand and contract with seasonal changes in moisture. Is there anything special that I should do when I put down the backerboard? It is essentially a wax product that looks like a crayon. Another exacerbating condition is water damage. Use this guide to learn more about the differences between glue down and floating vinyl plank flooring. Subfloor: 2 layers of OSB, joists are 16" on center (I think I am remembering that correctly), very stable Flooring: Floating click and lock vinyl plank flooring from Menards, manufactured in Belgium by IVC helliott1966, May 25, 2015 #1. To comply with the warranties, each manufacturer has a different set of specifications. Other joints between these larger gaps generally remain tight throughout the floor. This is not entirely true. Engineered hardwood flooring can be nailed down, glued down, or "floated" (not nailed or glued to the subfloor). As such, the floor does not have much structural integrity. Good solution, Alan – thank you for sharing! The floor joists are 2x9, 16" on center. This trick also works to disguise the edges if your floor turned out not to be perfectly flat and a little bit of a tile’s edge shows. I am planning on using 1/4" HardieBacker with a layer of thinset underneath. Secure the plywood to the subfloor at 6-inch intervals with 1-inch deck screws placed along the edges. These gaps allow the flooring to expand as the temperature in your home changes. Filling gaps in hardwood floor can be done using a stained rope, wood putty or with wood strips. With older tongue-and-groove hardwood or even wide-plank floors, gaps inevitably develop between the boards, mostly because the wood shrinks over time as it dries out and loses moisture content. To install glue-down planks, you spread a coat of mastic on the subfloor using a 1/4-inch notched trowel and lay the planks in the mastic. A floor with too many gaps that can be extensive to repair should be replaced completely to maintain its beauty. The acclimation period can be between 4 to 14 days or longer depending on your region of the country. share | improve this answer | follow | answered Apr 15 '13 at 20:09. The house is 45 years old. Caulk comes in seven or eight colors, not just clear and white. Gaps are usually 5/16” between the outside edge of the floor (the perimeter) and the obstruction (see featured image). Now is the time to do repair work on the subfloor. Remove the existing floor covering and pry up the underlayment with a pry bar, leaving the subfloor intact. I placed my block on the plank with just enough room to insert a wooden hammer handle between the wood trim and the block and pried it back into place. Greg says. Improper spacing. It’s also the subfloor that can hold in the most moisture. It means you have to sand down high spots in the concrete or fill in low spots with a self-leveling compound. February 19, 2019 at 10:41 … In all cases, the floorboards must be fitted tightly together during the initial installation. Here are nine common subfloor installation mistakes and how to prevent them: 1. We will be installing engineered wood flooring over an old tongue-and-groove plank subfloor. Worked like a charm. Reply. For best results, leave a ¼ inch to 3/8-inch gap between the flooring and each wall. In this video, This Old House contractor Tom Silva explains how to fill gaps in a wide-plank wood floor. The noises will often come from an area where the leveling was not properly done. The boards tend to fall away along the slope of the floor, causing the gaps to open between them. The problem is magnified when the boards were not tightly laid in the first place. How to Prepare a Subfloor for Vinyl Flooring. Underlayment is a layer of plywood or particleboard often found under carpet or vinyl. Several factors can be the cause. Flooring Over Plank Subfloor Whether or not you need plywood underlayment under engineered wood flooring depends on the condition of the original subfloor. I emailed Karndean and asked if it was normal to not have the planks tight, and to have gaps, and they said "no". Cause: Pinch points in room (gaps may occur in middle of room) Uneven subfloor; Job site damage OSB provides a reliable, sturdy foundation for squeak-free, straight floor systems—provided a few simple installation best practices are followed. Excessive movement, shrinkage or expansion of subfloor panels. No matter the flooring, concrete subfloors should always be cured for at least 60 days before a flooring installation. When dealing with small gaps less than 1/8th of an inch on the end of a plank or along the edge of a plank, the application of vinyl putty can provide an effective fix. You must be talking about Sureply. DMoore DMoore. Preparing a Wood Subfloor for Luxury Vinyl Flooring . Gaps? So, in short, I'm wondering if this is truly a common issue and that it is "normal" for install and Karndean doesn't want to say so. 2 Vacuum floor clean of all dust and debris. The plank subfloor is running perpendicular to the floor joists. After all the planks are secured, roll the floor with a floor roller to press the planks into the adhesive and prevent bubbles and lifting. I do not know if it was poorly constructed or if this naturally happened over time, but the tongues and grooves of the planks across much of the floor are no longer nesting within each other. Laminate flooring plank joints not remaining locked together. The good news is that they usually close back up. There are many diy-ers which are eager to install the laminate flooring and neglect the preparation steps, and ending up with gaps in the flooring. I am preparing to tile my kitchen floor and have it stripped down to the plank subfloor. During winter months complaints usually start trickling in. Gaps in a laminate floor can be caused by an uneven subfloor, improper installation of flooring underlayment, or temperature changes. This movement stresses the joint between the plank and the subfloor and eventually leads to the floor, separating or cracking. After two full seasonal cycles, the hardwood will reach an equilibrium with the subfloor and environment and the gaps in the wood will be minimized. I also asked if there was a "spec" for such a thing and they also said "no". If your new vinyl tile floor has an unsightly gap like this one, you can fix it for less than $10. If you are looking to trap the water on the top of the flooring so it doesn't get to the subfloor then make sure your planks are tightly clicked, your baseboards are pushed down on the floor and caulk the gap between baseboard and flooring. This is one of the main causes of gaps between the laminate planks. The plank subfloor has some gaps in it, maybe 1/8-1/4" or so. Water-logged wood will first swell then shrink as it dries out. Then remove the floor covering and underlayment (if you have any) to get to the subfloor. 1"X8" plank subfloor nailed on the bias to the joists 1"X4" softwood boards nailed perpendicular to the joists on top of the subfloor. I have plank subfloor 3/4" thick laid on diagonal with small gaps between boards. This may also be a case where the cost of repairing nears that of replacing. The planks are 7" wide and 3/4" thick, tongue and groove with 1/4" gaps. Gaps in wood floors are normal and occur when the wood loses its moisture content. Unlocking. Darol Wester Charter Member Senior Member. Filling gaps in plank floors? Issue 286 - Oct/Nov 2019. 3 If desired, tint rope with wood stain to match floor; let dry. The gap is always hidden by a piece of trim molding, like a quarter-round or a transition. Ideally, I would tear out the existing finish flooring, screw down the existing plank subfloor where loose, repair the plank subfloor where needed and then lay my new flooring (engineered hardwood) right over the existing plank subfloor. OR is my installer/retailer trying to get out of fixing it. The floor may roll a marble and looks to slope now that the carpet has been removed. Steps: 1 Scrape debris from between flooring planks with putty knife or painter's tool. Fortunately, there is a pretty easy way to fix gaps in vinyl tile or planks. When planks laminate planks and tiles will not stay locked together you end up with wide gaps between the boards. The subfloor is in good condition, but we are thinking of putting plywood over it before installing the flooring. In this event, some gaps may be considerably wider than … 4 Force rope into gap between planks with putty knife or painter's tool. 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