What type of insulation is this?

[Bill Smith]

White granular substance about 3/16th of an inch. Brittle and crumbly to the touch. Never saw anything like this. It might not even be insulation, just something that was spilled in a section of the attic. Any ideas?

[Dale Duffy]

Bill, I don't know what the white stuff is but that's Vermiculite on the right side of the first picture I BET...

[ccurrins]

I agree with Dale on they gray stuff being Vermiculite.

The other "white" looks like and might be >>> http://www.perlite.net/


http://en.wikipedia.org/wiki/Perlite#Uses

[Rodney Misener]

Originally Posted by ccurrins

I agree with Dale on they gray stuff being Vermiculite.

The other "white" looks like and might be >>> http://www.perlite.net/

what he said.

[Bill Smith]

I saw the vermiculite and run across it quite often here, but perlite is a new one. Good info. Thanks guys.