Vinyl plank flooring was installed in 2019, slab concrete foundation.I have been pleased with the product itself, but installation was a major issue. From the beginning I has problems with glue seeping up between the seams, and some planks curling at the edges. Floor Traders only solution was to re-glue. Five years later it has gotten to a point where it was a tripping hazard for me and I am having to have the entire floor replaced, at great expense and time. I'm working with a different company and their installers have informed me that the slab was not prepared properly, no moisture sealant was applied. I'm a senior on a fixed income, so this has been a serious financial burden for me. I would not recommend Floor Trader for vinyl plank flooring on a concrete slab foundation, primarily because of their installers. read more