We had some water damage to our basement floor, asbestos tile yippee. I would like to use carpet tiles over the asbestos and leave it alone. Iíve read that Olefin is a good choice because it doesnít absorb moisture as much as some other types. Can anyone recommend a good brand or if there is a better material out there? Also should we put down some sort of membrane or sealer on the floor before the carpet tile ? The basement has been waterproofed. It gets not necessarily damp down there in the spring but there will be increased moisture, we intend to have the dehumidifier running. Thanks!