Insulation: What is This
Interested in finding out whether my roof was insulated I took a peek and found this. I’ve never seen this type of insulation before. It looks like some kind of cotton. The dark parts come from dust. It seems this material is kind of yellowish otherwise. It doesn’t itch when you hold it in your…
Interested in finding out whether my roof was insulated I took a peek and found this.
I’ve never seen this type of insulation before. It looks like some kind of cotton. The dark parts come from dust. It seems this material is kind of yellowish otherwise. It doesn’t itch when you hold it in your hands so I don’t think it’s fiberglass.
Has anyone seen this before? What it is?
There’s a layer of about 5 inches or more covering my entire roof. Is it good enough of do I need to supplement this with another type of insulation?
Thanks
Could this be actual lambswool? It looks like it.
It’s dirty fiberglass insulation. There’s yellow, pink and green. Yours is dirty yellow.
There is a sheep wool fire retarded type, but its white.
Don’t worry it’s not a hazard…well no more than regular insulation
Fiberglass. Pink fiberglass is a marketing device, it comes in several different colors, of which yellow is one. I haven’t seen that much of it lately, but it is (or was) very common down south.
Fiberglass isn’t quite as horrific to touch as you’d think, you can hold it in your hand and not get itchy. Bare toso on a hot day on the other hand….
It’s hard to make blanket statements (pun intended) but based on the photo, I’d say no, it’s not enough. The dark patches as you correctly surmise, are dirt, but based on the photo it’s airborne dirt that’s migrating through the fiberglass. At the very least, you probably need to do some air-sealing, and if you have enough room, you should roll out another layer perpendicular to the first. You’ll probably get different opininions on which material is best to insulate with, but they all have pluses and minuses. Given that this is already in place, I’d leave it, but supplement it with the top layer as described above.