I want to tear off my basement wood panelling, insulate with polystyrene,
and then drywall (even though my code office says that paneling is ok over
foam). However, the paneling is furred onto cinderblocks, and covering the
block is tar paper.

Does tar paper, from a 1961 house, usually contain asbestos? Is an
abatement contractor required? How friable is the stuff? I guess I need to
remove it because I need to "Liquid Nail" the foam panels onto the block.

I've cut a 1" piece to have sent to a lab for testing.

Thanks for any advice.