I suppose it's good to remind folks of just how universal the use of asbestos was, up until the late '70's. Indeed, it was often an 'option' for the 'better materials.
And why not? It didn't rot or dry out. It didn't burn or rust away. The fiberous nature let it be formed, and lent durability to everything that had it. Nor did it conduct electricity.
For us, the major source is most likely in the drywall joint compound. Asbestos fibers were often included, as a way to minimize cracking and shrinking.
