"Agree ventilation is key, but honestly, proper install made the biggest difference for me."
Fair point about installation quality—seen plenty of botched fiberglass jobs myself. But I'm curious, was your fiberglass insulation originally installed correctly? I've found that when fiberglass is done right (proper thickness, no compression, and good air sealing), it can perform pretty well. Cellulose definitely has its perks, especially with air infiltration, but I've also seen it settle over time, losing some effectiveness. Did you notice any settling issues yet?
Also, how's the moisture situation been since switching? I've had a couple of clients who went cellulose and later had humidity issues pop up unexpectedly. Not saying it's common, just something I've run into occasionally...
"Cellulose definitely has its perks, especially with air infiltration, but I've also seen it settle over time, losing some effectiveness."
Yeah, I've noticed a bit of settling myself after about 5 years—nothing drastic, but enough to make me wonder if topping it off might be needed eventually. Moisture-wise, haven't had any real issues yet, though I did beef up attic ventilation at the same time. Curious if anyone else has tried mixing insulation types to balance out settling and moisture control...?
Yeah, I've noticed a bit of settling myself after about 5 years—nothing drastic, but enough to make me wonder if topping it off might be needed eventually. Moisture-wise, haven't had any real i...
I've seen similar settling issues too, nothing major but noticeable after a few years. Mixing insulation types can work well—like layering cellulose over a thin foam board base. Helps maintain R-value and reduces settling...plus foam adds a bit more moisture resistance.
I've been wondering about foam board myself—does it complicate attic ventilation at all? Your layering idea sounds smart, though...might help avoid that itchy fiberglass hassle next time I need to top things off.
"I've been wondering about foam board myself—does it complicate attic ventilation at all?"
Foam board can actually work pretty well if you install it thoughtfully. The key is leaving enough space for airflow—usually an inch or two gap between the foam and roof decking does the trick. I've done this in my own attic, and honestly, it's been a game changer. No more itchy fiberglass battles every time I go up there...just make sure your soffit vents aren't blocked, and you'll be golden.
