Scraping up concrete blobs on asbestos tile?
I have some "concrete" like splotches all over my tile floor, from using a waterproofing material you "paint" on the walls, then hardens. It got all over my floor, which I'm going over with laminate hardwood, but now the problem the stuff is hardened. I'm not sure if the tiles are asbestos (house built in 1958). I just need to take a shovel and scrape the concrete-like patches that are on the tile. Would you recommend a mask for this??