My attic's ancient cellulose insulation isn't doing a good job anymore. It's so old (and possibly moldy) that I'd like to vacuum it out and completely redo the insulation rather than just blowing in new insulation on top of the old stuff.
Any reason why I shouldn't just lay down pic related as a replacement? (Aside from it being difficult to maneuver in tight spaces.)
Can you people just answer my question and try to stifle your need to be jerks?
Super glue it to your butthole. That's gonna solve your problem.
You stupid fricking Black person. These are legitimate answers:
don't you know where you are?
If that’s what you were supposed to do, don’t you think more people would be doing it?
You can, but then you'd be working with fiberglass. Instead, you should figure out why your existing insulation got moldy and solve that problem. Then, you'll be better off when you install new stuff.
>you should figure out why your existing insulation got moldy and solve that problem
Consider that step one.
>should I use this product in the exact manner its intended for?
Cheap blown in cellulose breaks down over time. It was shit new, now its shittier.
Why don't you quit being a poor little homosexual and get foam insulation
>Why don't you quit being a poor little homosexual and get foam insulation
Maybe because he doesn't want his house to be a fire hazard?
That aside, if you don't want to deal with rolling out batts, you could also use blown-in fiberglass. Owens Corning has AttiCat.
>poor
>foam insulation
All the best packing crate homes have it.
He may be poor but he's probably not that fricking stupid
>reason why
it's pink
you're not a homosexual, are you OP?
It’s the way to go, just lay it out between the joists. R3 is quite low for a ceiling, go higher
OP here. Thanks for the help.
Because that shit is the devils candyfloss, you'll be itchier than a sailor after shore leave.
I'd go with rockwool, denser, better u value, comes in slabs and is nowhere near as itchy. Only downside is it's more expensive but there are deals out there if you look hard enough
Rockwool is the shit. Very easy to cope with
i'm in the uk. under the floor something like this is fine. walls or ceilings not so great (falls down).
i don't have pink stuff so i don't know what you freaks put in your shit but we have similar stuff, itches like frick but only for like 5-10 minutes after just dont be a pussy, less you scratch the less it itches. also wear a mask lol.
i have no idea what the silver backed shit is or anything, if you need vapour barrier or whatever idk about that, my attic is big airy ventilated and nice and dry.
Modern (since probably two decades ago?) doesn't use the nasty stuff any more, it's usually yellow. Owens Corning dyes theirs pink because they have used the Pink Panther branding for over 40 years.
The kraft paper isn't a vapor barrier, you should always put poly over it. It just gives you a convenient way to staple it up.
Unless you got rolled batts for free or something just blow in fresh attic insulation. The shit was similar in price or cheaper last I did it. You just have rent a blower for a few hours and have a buddy help (some one has to keep the blower loaded while you work inside). EZ.
I agree. Blown in is the way to go. About the same price, but better at insulating. Make sure to leave a gap by your soffit to get airflow.
Not OP, but this seems like the proper thread. I was insulating the ceiling of my basement and I disturbed this white shit that was hiding behind the existing insulation. It's extremely friable and my house was built in the glory days. Could this be anything OTHER THAN asbestos?
looks like pu-foam. I would worry more about that brown-ish fiber wool. If it's made before ~'95, it may be harmful to your lungs even though it's artificial mineral fiber.
Just put on a decent FFP2-mask and you will be fine
That's the rockwool insulation that I'm putting in
All rockwool is brown even the new stuff. And all of it is harmful for your lungs even if it's "safer than the old stuff."
That foam sucks dick, and in my house they missed every 3rd/4th stud bay they injected it into and it all shrunk and separated from the stud bays. Lots and lots of misting and wear masks when fricking with it or you'll be coughing for weeks. Remove that shit anywhere you uncover it and replace with rockwool. It'll also clog up any air/vacuum filters it gets into within minutes.
>my foam install was shit therefore all foam installs are garbage
>that foam
the common expanding foam in a single part can like that poster is showing becomes brittle and friable after it ages. He specifies that he's talking about a particular type of foam, and he's correct about it.
nice strawman attempt, homosexual
>attics and floors
I don't know.
My house has 60-year-old blown-in insulation that sucks, if I do or have someone do more is it common to vacuum out the old stuff first or is that not worth the effort? I can't imagine 60 years of dust on there helps with the insulation value.
Unless there were moisture issues, no reason to vacuum it out. Just blow more on top of it.
I just got the square batts & laid it on top of the cellulose, trimming as needed for corners & supports. I didn't see any good reason to remove the old stuff (6-8" of cellulose) other than it being a PITA when wiring etc.
It made a huge difference evening out the temp throughout the main floor and cut my heating bill in half.