I bought this home a little over a year ago. Now I need to fix some ductwork in the basement but I'm worried that this stuff between the joists for the return air might be asbestos. To the untrained eye it looks like cardboard covered with paper. Is it asbestos?
I did work for a large apt complex built in 72. We performed tests on 558 units and found asbestos only in the flooring mastic and drywall mud. Unfortunately the guys had been replacing drywall and tile for yrs, I know many of them but no issues yet. I still have the many pages of tests.