Identify this insulation....

Kippy Konrad · 08-18-2008, 05:20 PM

This is from a Chicago house built around 1930. This was found in the walls and around a cast iron tub. It looks like cotton candy. Anybody know what is is? Could it be asbestos? Thanks...

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**Raymond Wand** · 08-18-2008, 05:27 PM

Looks like shredded fibreglass/rockwool.

**Rick Cantrell** · 08-18-2008, 05:50 PM

Cotton candy sure looks a lot different in Chicago than in Columbus.
Ours is pink, light blue or yellow.

**Rick Sabatino** · 08-18-2008, 06:09 PM

I agree. Rockwool

**Rick Hurst** · 08-18-2008, 07:01 PM

Wow, He's needs a infrared camera.

rick

**Michael Thomas** · 08-19-2008, 04:30 AM

I'd report that (we are required to identify insulation in IL) as "mineral wool". If you want to get really specific, it's MMMF (man-made-mineral-fiber).

**Jerry Peck** · 08-19-2008, 05:25 AM

Ummmmm ... being as "mineral wool" is made from rocks, slag, and other minerals, does it, perchance, produce radon, adding to the radon in the home?

**Raymond Wand** · 08-19-2008, 05:29 AM

I'd be more concerned about breathing in the fibres when it is disturbed. Cough...cough...wheeze...

**Scott Patterson** · 08-19-2008, 06:07 AM

Originally Posted by Michael Thomas

I'd report that (we are required to identify insulation in IL) as "mineral wool". If you want to get really specific, it's MMMF (man-made-mineral-fiber).

Well, if ya don't know then ya don't know.

Unless the insulation has a label on it then you really can't ID it. The best way to get around this type of state requirement is to simply state that the insulation can not be identified without a laboratory analysis. This is a true statement that can not be refuted.

If it is "rock wool", then it could contain asbestos. Just tell your client that it is possible but the only way to know for sure is to have it tested by a lab.