Installing Vinyl Siding Over Old Asbestos Siding

Question

I am installing vinyl siding over asbestos siding.. Do i HAVE to put the foam insulation board under the vinyl siding?? Is the only purpose of it just to help insulate the house??

Answer 1

  I would recommend not trying to install vinyl siding over asbestos siding.  Asbestos siding is hard and brittle, so it is extremely hard to nail through.

Answer 2

Not only that, but if you put up foam insulation, then vinyl, your window and door frames will be sunken in, and look just wrong.  

Answer 3

you dont have to put it under the siding! the siding can go right over the old!