That denim insulation looks cool on paper, but yeah, I had almost the same issue with it last year. It just didn’t cut it for the drafty spots under my porch—felt like the cold air was laughing at me. I ended up using a combo of leftover sheep’s wool and some old burlap sacks, which helped a bit more, but honestly, nothing beats just crawling around and sealing every weird gap you can find.
About heat tape: I’ve been searching for something less plastic-heavy too. Most of what’s out there is either wrapped in PVC or some other synthetic. I tried running a low-watt ceramic bulb in a protected box near the worst pipe, but that’s not exactly “green” either... just less plastic. Have you ever looked into those clay-based pipe wraps? I saw them mentioned on a UK forum but haven’t found them locally.
It’s kind of wild how much trial and error goes into this stuff. Makes me wonder if there’s an actually sustainable fix out there, or if we’re all just patching things up every fall and hoping for the best.
I tried denim insulation under my crawlspace last winter and honestly, the hype didn’t match the results for me either. Ended up stuffing mineral wool in the worst spots and taping seams with aluminum tape—messy but it worked better. Never heard of clay wraps, though. I keep hoping someone invents a magic eco-friendly pipe wrap that actually works and isn’t just marketing fluff... until then, I’m just crawling around with a flashlight every November.
Denim insulation’s one of those things that sounds great on paper, but in the field? Not always up to the job, especially once it gets a bit damp. I’ve seen folks swear by it, but honestly, mineral wool’s way more reliable for crawlspaces—just gotta deal with the itch factor. Taping seams with aluminum tape is solid, though. That stuff sticks like crazy.
Clay wraps… yeah, I’ve run into them a couple times. They’re heavy and awkward, and honestly, unless you’re dealing with some weird historic pipes or have a specific condensation issue, they’re more trouble than they’re worth. For eco-friendly pipe wrap that actually works, I haven’t found anything that beats the old-school foam sleeves—just make sure you seal the joints tight and keep critters out.
Crawling around every fall is pretty much the seasonal ritual for me too. Flashlight in my teeth, cursing last year’s “quick fixes.” If someone ever invents a magic wrap that installs itself and lasts forever, I’ll be first in line... until then, it’s patchwork and patience.
Crawling around every fall is pretty much the seasonal ritual for me too. Flashlight in my teeth, cursing last year’s “quick fixes.”
That’s exactly how it goes at my place—every year I swear I’ll do it “right” and then there’s always some corner I missed. I’ve wondered about denim insulation myself, but the moisture thing worries me. Have you ever tried the rigid foam board for crawlspaces? It’s not as eco-friendly, but it seems to hold up longer and doesn’t attract critters as much. The itch from mineral wool is brutal, though—last time I used it, I was still scratching days later. Is there a trick to making that less miserable, or is it just part of the deal?
I hear you on the mineral wool—last time I used it, I looked like I’d wrestled a cactus. I tried the long sleeves and gloves trick, but somehow that stuff still finds a way in. Haven’t tried denim insulation yet, mostly because of the price and the moisture thing you mentioned. Rigid foam board’s been my go-to for the last couple years. It’s not perfect, but it’s held up better than anything else so far, and I haven’t had mice chewing through it (yet). Curious if anyone’s had luck with vapor barriers actually staying put under there? Mine always seem to shift around by spring...