I’ve definitely seen heat tape get knocked loose in crawlspaces—one time a raccoon managed to pull half of it down. I’m curious, do you guys ever use those rigid foam boards instead of sleeves for exposed runs? I’ve had mixed luck with ‘em, especially in older houses where nothing’s straight.
Rigid foam boards can be a pain in older homes—nothing lines up, and you end up with gaps unless you’re willing to spend extra time cutting and fitting each piece. I’ve had better luck with the thick pipe sleeves, honestly. They flex around weird bends and odd joists a lot easier. Have you ever tried using spray foam to seal up those awkward spots where the rigid board doesn’t quite fit? I’ve found it helps, but sometimes it’s overkill for short runs.
Spray foam’s a lifesaver for those weird gaps, but yeah, it can get messy fast if you’re not careful. I like it for the spots where nothing else will fit, but for short runs, I usually just double up pipe sleeves or even tuck some fiberglass in the tight spots. Sometimes less is more, you know?
I get where you’re coming from with doubling up sleeves or stuffing fiberglass, but I’ve seen that approach backfire in some cases. Fiberglass can absorb moisture if there’s any condensation, and then you’re looking at potential mold issues down the line. For those short runs, I usually go with closed-cell foam pipe insulation—cuts cleaner, holds up better over time, and doesn’t trap moisture. Spray foam’s great for odd shapes, but yeah, it’s easy to overdo it and end up scraping off the excess later... been there more than once.
Title: Plumbing tips that change with the seasons
Yeah, I’ve run into that mold issue with fiberglass too—especially in older basements where humidity sneaks in. Had a job last winter where someone doubled up on sleeves and it actually made things worse. The pipes sweated, insulation got soggy, and we ended up tearing it all out. Closed-cell foam’s been my go-to for a while now. It’s just less hassle in the long run.
Spray foam’s a mixed bag for me. Works great in tight spots, but I’ve definitely had to chisel off big globs when I got carried away. Not fun. One thing I’ve started doing is checking all the insulation before the cold hits—sometimes critters chew through it or it just shifts around over the summer. Saves a headache when temps drop.
Funny how something as simple as pipe wrap can turn into a whole project if you’re not careful...
