I have seen that as well, I'm not sure what type of flooring they are using because regular laminate floor you get at a DIY store is easily ruined by the slightest bit of moisture. The seams swell where the pieces lock together. I installed a very expensive laminate floor in my wife's salon that was supposed to be moisture resistant. We are super crazy about how we clean it. I have some seams swelling after people walking in when it was snowing and she dry mops the floor several times a day. Not sure what they use but nothing you can buy at home depot will work
