Asbestos in homes
Asbestos in homes prior to 1980 could be in many locations in the home. It was used as an insulator and it was put in drapes, flooring to insulate pipes to insulate duct-work, many many things. Asbestos is no longer installed and things but it can still be in the house would require specialized inspection. If you see something that looks like this in your basement or attic, stop breathing, don't reenter the space and call a specialist immediately.