I'm currently refinishing my basement in northern New Jersey, where the humidity levels can get pretty high, often between 70-80%. I have a standalone thermometer reading 90% humidity before I even turn on the dehumidifier. Given this, I was planning to epoxy the entire floor before laying down vinyl flooring. However, my contractor suggested using 'Drylok Extreme Basement Masonry and Concrete Sealer Waterproofer,' which seems primarily intended for walls. Is he suggesting an off-label use for this product on the floor? He's been in the business for over 35 years, but it just doesn't feel right to me.
5 Answers
I wouldn't count on Drylok to last forever on a floor. We tried it in our basement, and it started chipping after just four years. If you’re going to put down flooring, you might want to consider the possibility of mold growing underneath in the long run if you don’t address the humidity issue first.
For sure, you should definitely get a dehumidifier to help reduce the moisture. It’s crucial for maintaining the integrity of your basement.
Why is there a distinction between wall and floor sealers? Wouldn't they work similarly?
Wow, that's a crazy level of humidity! I’m surprised you didn’t have any mold issues before now, especially if the basement was finished earlier. Have you thought about investing in a quality dehumidifier? It could really help keep things dry down there.
Honestly, using Drylok for a basement floor isn't a great idea. It can trap moisture within the concrete walls, which could eventually damage your foundation. I’m in north Jersey, too, and what I’ve found works better is to have a fence drain and sump pump in place to deal with the excess moisture.
Exactly! I have two sump pumps and a French drain. My main concern is the high humidity levels; it feels like there could be lots of hydrostatic pressure pushing up from the slab.
Mold growth is definitely something I’m worried about with all this humidity, especially after the previous finishes.