Those “weird” options really do have their perks, especially if you’re trying to avoid that chemical haze. I’ve had similar luck with sheep’s wool—never thought it’d hold up in a damp basement, but it’s been surprisingly resilient. One thing I’d add: if you’re in a flood-prone spot, it’s worth thinking about how easy it is to pull out and dry whatever insulation you pick. Some of the rigid foams are a nightmare to deal with after water gets in, even if they’re technically “waterproof.” Sometimes simple and natural just makes life easier when things go sideways.
Has anyone actually tried removing sheep’s wool after a flood, though? I get the appeal—natural, less chemical smell, all that—but I always wonder how it holds up if you really soak it. With fiberglass, at least you know it’s going straight to the dumpster if it gets wet. Curious if there’s a “best of both worlds” option out there for basements that flood every few years... or is it just wishful thinking?
Curious if there’s a “best of both worlds” option out there for basements that flood every few years... or is it just wishful thinking?
Honestly, I’ve pulled out soggy sheep’s wool once—never again. It clumps, smells like a wet dog, and takes forever to dry. Fiberglass is a pain too, but at least you know it’s trash when it’s soaked. For repeat-flood basements, I’ve had better luck just leaving the walls uninsulated below grade and using rigid foam higher up. Not perfect, but less mess when the water comes back... which it always does.
Title: Insulating Flood-Prone Basements: Worth Trying Closed-Cell Spray Foam?
I get where you’re coming from—pulling out ruined insulation is a nightmare. But I’ve actually had some luck with closed-cell spray foam in a couple of my rentals that see water every few years. It’s not totally waterproof, but it’s a lot more resistant to moisture than fiberglass or wool, and it doesn’t soak up water like a sponge. Plus, it adds a bit of structural strength to the walls, which is a nice bonus.
Leaving the lower walls bare does make cleanup easier, but you lose out on energy efficiency and comfort. If you’re planning to finish the basement or use it for anything more than storage, it might be worth looking into spray foam. It’s pricier up front, but I’ve found it saves headaches (and money) down the line. Just make sure you’ve got a good sump pump and drainage setup—no insulation’s gonna help if you’re dealing with standing water for days.
Not saying it’s perfect, but it’s been a decent middle ground for me. Anyone else tried spray foam in a flood zone?
Keeping Your Home Dry: Insulation Tips for Flood-Prone Areas
I’ve been down the flooded basement road more times than I care to admit, and honestly, the idea of never having to rip out soggy fiberglass again is pretty tempting. Closed-cell spray foam does seem like a step up—at least it won’t turn your walls into a moldy science experiment. But I’m still a little skeptical about calling it a “fix” for flooding. If water’s coming in hard, even the best foam’s just gonna sit there wet, and then what? I’ve seen it peel off in chunks after a few years in a really damp spot.
That said, I totally get wanting to finish the space and not freeze in the winter. Maybe the real trick is combining spray foam with some serious drainage upgrades. French drains, sump pumps, the whole nine yards. Otherwise, it feels like you’re just putting a Band-Aid on a busted pipe. Anyone ever tried those waterproof wall panels instead? I’ve heard mixed things, but at least you can hose them down after a flood...
