hi all. Just looked at a Floor job today.The Lady needs tiles laying. problem is the carpet needs to come up and underneath that is asbestos tiles .She knew this because another tiler came previously and checked it out and refused the job. the asbestos tiles are solid to the concrete floor. my thoughts are : prime the asbestos tiles and slc ontop, or stick hardiebacker board straight ontop of the asbestos tiles. Any good advice there forumers.