Totally agree on composites holding up better. When we redid ours, we went with composite shims after my brother warned me about plastics cracking in his place. Two years later, still rock solid—even with kids splashing water everywhere and sunlight streaming in daily. Worth the extra bucks for sure.
Composite definitely holds up better than plastic in most cases, but I've seen a few instances where even composites struggled with prolonged humidity—especially in bathrooms without great ventilation. Curious, did you upgrade your ventilation system too, or was the composite alone enough to handle moisture? I'm thinking of redoing mine soon, and moisture control's been a headache in the past...
Composite definitely helps, but ventilation's still key in my experience. I've had a few bathrooms redone in rentals, and even with composite materials, moisture buildup can sneak up on you if the airflow isn't great. Did you consider adding a humidity-sensing fan? I put one in a particularly tricky bathroom last year, and it's been a game changer—turns itself on automatically when things get steamy, so tenants don't even have to think about it. Might be worth looking into...
Humidity-sensing fans are handy, but have you noticed they sometimes don't kick in fast enough? I've tried them before, and while they're convenient, I found mold still popping up in corners if the bathroom wasn't cleaned regularly. Maybe pairing one with a timed fan switch could be safer—tenants might forget about humidity, but a timer's pretty foolproof. Just my two cents...
Timers are definitely more reliable—I've installed humidity sensors before, and while they're convenient, they do lag sometimes. Curious though, has anyone tried combining both systems? Wonder if that'd cover all bases...