Yeah, fiberglass has a way of sticking around where you least expect it. I tried to rush through an attic job once—ended up regretting it for days. Taking your time really does make a difference, even if it feels slow in the moment.
Man, I totally get that—fiberglass is like glitter’s evil cousin. You think you’ve cleaned it all up, then two days later you’re still scratching your arm and finding those little glass hairs in your shirt. Rushing just isn’t worth it, especially if you end up with that itch for a week.
On the timing thing, it really depends on the house and how much help you’ve got. I did a 1,200 sq ft ranch last year by myself, and it took me almost four full days to do the attic, crawlspace, and walls (well, the ones I could get to). That was with a few snack breaks and a lot of “what did I just step on?” moments. If you’re working with someone who actually knows what they’re doing—or at least doesn’t bail halfway through for tacos—you can probably shave off a day or two.
The biggest time-eater for me was always prep. Moving boxes, sealing weird gaps, taping around outlets... that’s the stuff nobody tells you about. Actual rolling out or blowing in insulation goes pretty quick once you get into a rhythm. But yeah, if you rush and skimp on the prep, you’ll regret it later when your heating bill barely budges.
One thing I started doing: wear cheap long sleeves you don’t care about and toss them after. Saves a lot of laundry drama. And duct tape around your wrists helps keep the fibers out—learned that one the hard way.
Anyway, slow and steady wins this race. It feels like forever while you’re up there sweating and cursing, but when winter hits and your house actually holds heat? Totally worth every minute.
fiberglass is like glitter’s evil cousin. You think you’ve cleaned it all up, then two days later you’re still scratching your arm and finding those little glass hairs in your shirt.
You nailed it—fiberglass is the worst. I’m still finding little reminders from last spring’s attic project. I hear you on the prep too, especially with old houses. Mine’s from the 1920s, so I swear every wall has some weird nook or old knob-and-tube surprise. Did you run into any oddball stuff when you were sealing gaps? I always wonder if I’m missing some hidden draft somewhere...
I swear every wall has some weird nook or old knob-and-tube surprise.
That’s the story with these old places. I’ve run into everything from random mouse tunnels to what looked like a petrified bird’s nest stuffed behind a knee wall. The knob-and-tube wiring is a whole other headache—ended up having to reroute some insulation because I didn’t want to risk it.
Here’s what’s helped me track down drafts and oddball gaps:
- Incense stick or smoke pencil: Just walk around on a windy day and watch for the smoke to waver near baseboards, outlets, or attic hatches.
- Infrared thermometer: Not perfect, but it’ll show cold spots that could be hidden leaks.
- Outlets and light switches: Old houses love to leak air here. Foam gaskets behind the plates made a bigger difference than I expected.
Honestly, even after sealing what felt like every gap, I’m convinced there’s still a sneaky draft somewhere. The quirks are half the fun... until you’re paying the heating bill.
Those foam gaskets behind the outlets are a game changer, right? I always tell people—don’t underestimate the power of a $2 fix. And yeah, old houses are basically a scavenger hunt for weird drafts. I once found a whole stash of marbles inside a wall (no clue). If you ever think you’ve sealed every gap, just wait for winter... the house will find a new way to surprise you.