"I've seen epoxy grout hold up great, but if the waterproofing underneath isn't done right (like using a proper membrane or backer board), leaks can still sneak through eventually."
Yeah, totally agree with this. When I redid my shower, I went with epoxy grout too, but the real peace of mind came from upgrading the waterproofing behind it. Here's what worked for me: first, I installed a solid cement backer board, then applied a liquid waterproofing membrane over it (two coats, just to be safe). It's an extra step, but honestly worth it to avoid that sinking feeling of discovering leaks later on...
I had a similar experience a few years back—thought epoxy grout alone would be enough, but learned the hard way about proper waterproofing. Ended up having to redo the shower after just a couple years because moisture seeped through. Now I'm extra cautious and always recommend a good membrane behind it. Curious though, anyone tried those sheet membranes instead of liquid ones? Wondering how they hold up over time...
Had almost the exact same issue last year—thought I was saving money skipping the membrane, and boy did that backfire. Ended up with water damage behind the tiles and had to rip everything out. Lesson learned, right?
About sheet membranes, I actually went with one (Kerdi) when redoing mine. So far, it's been holding up great—no leaks or moisture issues yet, fingers crossed. Installation was pretty straightforward too, even for someone like me who's not exactly a pro DIYer. Only downside is they're a bit pricier upfront compared to liquid membranes, but honestly worth it for peace of mind.
Anyway, good on you for being cautious now...better safe than sorry when it comes to water damage. Hope your next shower project goes smoothly!
"Only downside is they're a bit pricier upfront compared to liquid membranes, but honestly worth it for peace of mind."
Totally agree on this. When I redid my shower, I debated between Kerdi and RedGard (liquid membrane). Ended up going with Kerdi too; the extra cost stung a bit initially, but honestly, being able to sleep at night without worrying about hidden leaks makes it worth every penny. Plus, installation wasn't as intimidating as it seemed—just gotta take your time and follow instructions closely.
Good points, but honestly, Kerdi isn't always the best choice for everyone. A few things to consider:
- Kerdi definitely has a solid reputation, but I've seen plenty of showers done with RedGard or Hydro Ban that held up perfectly fine over the years. Proper prep and application are key—it's not always about the product itself.
- Cost-wise, if you're doing multiple units or rentals, the price difference adds up quickly. Liquid membranes can be significantly cheaper, especially if you're comfortable applying them yourself.
- Installation-wise, Kerdi can be straightforward, sure, but I've also seen DIYers struggle with corners and seams. Liquid membranes might actually be easier for someone less experienced, since you just roll or brush it on evenly without worrying about overlaps or thinset buildup.
Not knocking Kerdi at all—it's a great system—but it's worth considering your specific situation and skill level before automatically assuming it's the best option.
