Te replace or Kilz?
Howdy, folks! Thanks for your time and advice—first-time poster here. We wanna tile our bathroom! “Piece of cake,” they said. So, we ripped up two layers of vinyl flooring glued to ½-inch MDF. Then, we started tearing up the MDF and found moldy OSB. The OSB is ¾-inch tongue-and-groove, which threw me off at first—I thought it was a ¼-inch layer on top of something else that was ½-inch below it. Today, I learned what tongue-and-groove OSB subflooring is! I’ve poked at the OSB a lot with a screwdriver, and it feels solid. It’s no longer wet. I’m sure the MDF-covered areas are just as bad, if not worse. I’m considering two options: 1. Scrub everything down with a mold killer, then paint Kilz over it. Tack ¼-inch plywood on top, then proceed with the tile installation (thin-set, Schluter-Ditra, more thin-set, tile, and grout). 2. Remove the OSB until all the moldy parts are gone, replace it with new OSB on the joists, and then tile directly without the ¼-inch plywood. Any advice is greatly appreciated. Thank you submitted by /u/No-Camp3968 [link] [comments]
| | Howdy, folks! Thanks for your time and advice—first-time poster here. We wanna tile our bathroom! “Piece of cake,” they said. So, we ripped up two layers of vinyl flooring glued to ½-inch MDF. Then, we started tearing up the MDF and found moldy OSB. The OSB is ¾-inch tongue-and-groove, which threw me off at first—I thought it was a ¼-inch layer on top of something else that was ½-inch below it. Today, I learned what tongue-and-groove OSB subflooring is! I’ve poked at the OSB a lot with a screwdriver, and it feels solid. It’s no longer wet. I’m sure the MDF-covered areas are just as bad, if not worse. I’m considering two options: 1. Scrub everything down with a mold killer, then paint Kilz over it. Tack ¼-inch plywood on top, then proceed with the tile installation (thin-set, Schluter-Ditra, more thin-set, tile, and grout). 2. Remove the OSB until all the moldy parts are gone, replace it with new OSB on the joists, and then tile directly without the ¼-inch plywood. Any advice is greatly appreciated. Thank you [link] [comments] |
