Had a similar experience with my old place—thought I'd be clever and tried a natural beeswax-based sealer in the shower. Worked great...until summer hit and the bathroom smelled faintly like honeycomb for weeks. Not exactly the spa vibe I was aiming for, lol. Ended up switching to a recycled rubber membrane, and it's been solid so far. Eco-friendly waterproofing is awesome, but maybe skip the edible-smelling options for bathrooms?
"Eco-friendly waterproofing is awesome, but maybe skip the edible-smelling options for bathrooms?"
Haha, that's definitely a unique issue to run into. Beeswax can be effective in certain applications, but showers are tricky due to constant moisture and temperature fluctuations. I've seen clients try various natural sealers with mixed results—some hold up surprisingly well, others...not so much. Curious if anyone here has experience with cork-based waterproofing membranes? They're sustainable and gaining popularity, but I'm still evaluating their long-term durability in wet areas.
I actually tried cork-based waterproofing in one of my rental properties last year. Looked great at first, tenants liked the eco-friendly angle too. But after about 8 months, moisture started seeping through around the edges...not a total disaster, but definitely not ideal. Ended up having to redo it with something more traditional. Maybe I just got unlucky, but I'd be cautious using cork again in a shower area.
Interesting experience—I haven't personally tried cork waterproofing in showers, but I did use it as flooring in a bathroom remodel a couple years back. It held up surprisingly well, even with kids splashing water everywhere. Maybe the key difference is vertical vs horizontal application? Or possibly edge sealing methods vary between products... Could be worth looking into higher-grade sealants or installation techniques before completely ruling cork out for wet areas.
I had a similar experience with cork flooring in our guest bathroom. It wasn't really planned, to be honest—just had some leftover cork tiles from another project and figured why not? Surprisingly, it's been about four years now and still holding up strong. Mind you, this bathroom doesn't get daily heavy use like our main one does, but we've had guests (including teenagers) who aren't exactly careful about splashing water around.
But yeah, I think you're onto something with the vertical vs horizontal application idea. I've never tried cork on walls or showers myself, but from what I've seen in other DIY forums, sealing methods can definitely make or break the deal. A buddy of mine tried cork on his shower walls (he's big into eco-friendly materials), and he swears by using a marine-grade sealant. It's pricier for sure, but apparently it creates a much more robust barrier against moisture.
Another thing to consider might be ventilation. Even the best waterproofing can struggle if your shower area stays damp all day. I installed a stronger exhaust fan when renovating our main bath after having some mildew issues with tile grout—made a huge difference. Maybe pairing cork with better airflow could help prevent any potential water damage?
Still, personally I'd hesitate before going full-cork in an everyday shower situation. Floors seem manageable enough since water mostly sits briefly on the surface and dries quickly, but walls are constantly exposed to running water and steam... seems like a different beast altogether.
Anyway, just my two cents based on trial-and-error experiences over the years. Could work great if done right—but definitely worth doing thorough research before diving in headfirst.
