White, powdery floor insulation–can you ID this?
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davidmeiland
| Posted in General Questions on
Picked up this image form another forum, and it might be a stumper. Who has the answer?
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Replies
David,
I'm not convinced this is a stumper. It's hard to be sure from the photo, but that might simply be cellulose.
blown fiberglass?
My first thought was urea formaldehyde, but it looks a lot more like cellulose if you focus on what is on the rafters.
If it is friable into dust, it is more likely urea.
The grey stuff on the rafters does look like cellulose, but I've never seen cellulose maintain a horizontal structure like it appears to in some areas down below on the floor... anyone else see what I mean? Cellulose can certainly go in unevenly if installed poorly, but unless it's wet-sprayed I've never seen it do anything like that. I'm leaning towards UFFI.
"White, powdery" also makes it sound like UFFI... but it really does look like cellulose... man, this is really bugging me.
Here is the forum thread the photo comes from http://inspectorsjournal.com/forum/topic.asp?TOPIC_ID=19603 and it turns out there are more photos https://www.flickr.com/photos/8377217@N02/with/15827472191/
I have nothing to do with this situation, just a curious onlooker.
Sure looks like cellulose to me.
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the crawlspace is a total swamp... which explains the weird clumping I noted earlier.
Nothing like a thread where the OP withholds all the really useful information until the end.
hahaha, yeah, just cellulose.