How can I effectively fill the hollow spot under my LVP click floor?
Asked by Fatma Topçuoğlu 
7 months ago
Last Updated: April 19, 2024
Hey, does anyone know of a good fix for the hollow spot under my LVP click floor?
You can really feel how hollow it is underfoot when you walk on , especially at the seam.
I believe the best solution would be to either remove and repair the floor underneath or lift up the LVP flooring and insert a filler like a piece of underlayment, foam, or plastic sheet that won’t rot with water. Water damage is a possibility in that area, so it’s important to address it sooner rather than later.
Floating floors tend to exhibit that behavior. Is it lifting on its own or staying flat
Here’s a different perspective for you to consider when you encounter the seam vertically
I haven’t personally tried these out, but they might be useful for you:
https://www.homedepot.com/p/Fix-A-Floor-20-oz-2-Pack-Loose-and-Hollow-Flooring-Repair-Adhesive-FIXPRO2/321542450
https://www.youtube.com/watch?v=eaj8CFgOGQA
There could be a few different issues at play here. One possibility is that there wasn’t enough space left along the wall for the floor to expand. Try lifting up the pieces near the wall, walking on them, and letting them sit for a while to see if it helps. If it does, trim those pieces slightly narrower. Another potential problem could be the piece under your dishwasher, next to the cabinet, being too tight. I’d check that first. Relay the pieces and if that doesn’t work, other solutions will need to be considered. If the floor was recently installed and there’s a low spot, you’ll need to pull it up and use self-leveling cement before relaying it. If this isn’t a new installation but a new issue, there may be water damage on the subfloor. You won’t know for sure until you remove the floor. It could be a small leak from the dishwasher since water and heat can cause damage. You’d still need to lift the floor to repair the subfloor before laying it down again.
Seems typical since you’re lifting it up. It’s not a glue-down installation……
If it’s moving significantly up and down, you’ll notice your dishwasher right there. Pull out the washer to access underneath, raise the flooring, apply some floor glue underneath, return the washer, and place something heavy on the floor to hold it down while the glue sets.
Lvp can be raised anywhere…. does it sink when you step on it? That could be a problem. If it does, you have 2 options: 1. remove the floor and level it properly or 2. There’s a product meant to be injected through a small hole drilled in the floor, although I can’t recall its name.
I watched a YouTube video of someone using the drilling method you mentioned and using an expandable caulk. Is that what you’re referring to?
Yeah, it was designed specifically for this purpose. It has low expansion to prevent floor buckling and is not sticky to avoid gluing it in place.
That’s the result of choosing a cheaper option.
I wanted to keep the original hardwood floor in my 1920s house because it’s actually the subfloor (tongue and groove). It’s perfect for my two small children and young pup who are always running around.
Do you know who installed the floor? Was there a gap left around the edges?
It seems like the piece is bent from water damage, probably due to its proximity to the dishwasher. Water often causes floor damage near dishwashers. 🤔
Make sure to prevent water from pooling there in the future.