I've been finding this material all around my house for the last six months. To give you some perspective, the sample below is about 2 inches by 1 inch. The sizes of the pieces I find vary considerably in size from less than 1 inch to almost a square foot. The larger pieces tend to be flat like a layer. Other houses in the neighborhood don't seem to have this so it seems to come from our house.

I live in a house that has been converted into two condos and the other unit had construction done last year. Most was internal, but they did have a sky light put in. I wonder if the construction left a hole somewhere that allows an animal to get in a retrieve this material.

Any idea what it is? It feels synthetic. Figuring out what it is should hopefully help us find the problem and fix it!

enter image description here

  • Is it carpet fiber? When I vaccuum my carpet, my bagless vac pulls up some of the fiber and the resulting bits look a lot like your photo. – chue x Sep 6 '16 at 18:41
  • @chuex, nope, there are some bigger pieces that are definitely not carpet fiber. – gaefan Sep 6 '16 at 22:56
  • Voting to close. We're being asked to guess what some white stuff is through the internet with very little information. – isherwood Nov 8 '16 at 18:47

I'd guess that you have a rodent problem, and I'd guess that you're finding bits of your furniture padding/batting that were in the way of a cozy nest. How else could something like this just appear "around the house"?

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Looks like insulation, fiberglass or polyester perhaps. Usually used on top of ceilings or in stud wall cavities.

Does though also look a bit like hobby stuffing or cushion filling.

Could be a few things.

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  • It isn't fiberglass, but does feel like polyester. It does look and feel like cushion filling but I'm pretty sure there are no cushions lying around... – gaefan Aug 7 '16 at 17:06

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