I just bought a house in Maryland. It was built int he 50's. Part of the basement has asbestos tile. The previous homeowner removed some of it. But I still have it in my furance room and a room under my front porch. One area the tiles have been patched with cement. And another area there are tiles that are cracked. I don't know if I should remove the tile or put some kind of top coat on them and them put down vinyl on top.