I'm in the process of converting my bathroom, and I've already installed the drywall, mudded it, and painted it. The tile floor is also in place. As I get ready to install the baseboards, I'm considering the potential for moisture issues that might arise—whether from toilet leaks, wet towels left on the floor, or splashes near the shower. Is it common practice to apply a waterproofing product to the lower few inches of the drywall before putting up the baseboards? I might be overthinking it, but I'm wondering if this could help prevent moisture from damaging the drywall. I'd appreciate any advice, whether it's standard practice or just a wild idea. Thanks!
4 Answers
In my opinion, going the waterproofing route is a bit of overkill, but I did it because I had some leftover Schluter tape I wanted to use up. If it's just for peace of mind, I say go for it!
For the ultimate protection, consider undercutting the drywall so it doesn’t touch the floor. Just beware that if your baseboards are porous, they can wick up water. I recommend avoiding MDF baseboards in the bathroom—I switched to tile and rubbery baseboards in areas that get wet a lot. Also, be alert where the shower or tub might splash on the painted walls because that’s where mold tends to build up if water leaks out.
It's not standard practice, but it’s a smart move! When I built my bathrooms, I installed angle aluminum flashing at the wall/floor joint and then covered it with RedGard for about 3 feet from the tub and toilet area. It really gives you extra protection where water tends to pool. If you don’t want to go that far, you could also just caulk the drywall-to-floor joint and add a few coats of paint. That’ll help too!
I actually did waterproofing when I installed my baseboards. I used RedGard under the tile and went a few inches up the wall, right under my 3-inch molding. I think it’s definitely worth it, especially since bathrooms can see some serious moisture. Just remember to ventilate well when you're working with these products!
Exactly! Just make sure you follow the instructions on the RedGard. Proper venting is key!