I recently did work on a house that had this whitish foamy pebble like stuff for insulation in the attic. The house was balloon framed so it was also in the walls. I have never seen it before and am wondering if there are any nasty chemicals associated with it. I also wonder if there are any health risks from handling it. I can't find a lot online about it. Any information would be helpful.
Here's a link to the Popular Mechanics Advertisement for Dacotherm. Looks interesting. R4 per inch. Claims to be toxin free. What did the owner's think about their home's efficiency and the insulation?