Hello, we have some lovely asbestos tiles that we are planning to have taken up as they cracking. Underneath we have bitumen which also contains asbestos. One firm said, just take the tiles up and leave the bitumen as its fine as it is, if you are not going to drill it etc. Another firm said it needs removing or sealing? One said just cover with PVA, another said it needs arnitex, which aint as cheap as PVA. That said, I like my lungs. I was thinking just to go the PVA route as we plan to lay laminate on top.