Wife and I bought a 1922 house in the fall. Poking around in the attic, I may have discovered a 2" layer of vermiculite underneath 4" of cellulose insulation (the area under the storage area is 2" of vermiculite below the subfloor)
Before discovering the vermiculite, we were hoping to replace the knob-and-tube in the attic so we could add more lighting, air seal, and add more insulation. In order to do any of that, I would be disturbing the vermiculite (which may contain asbestos).
Any thoughts? We called our inspector (who missed this as it was mostly covered by cellulose, but we do trust as he told us to run from another house without charging us) didn't seem that concerned about covering/disturbing it. I've gotten quotes of $5-9k to remove the stuff.
My current thought is to pay to have it removed and do the electrical/re-insulation myself come spring time. Not sure about DIY removal of the stuff...