Just removed an old lenoleum flooring, ( 50 years), and a Parkay floor. Do they make a floor sander or are there any chemicals that can be used?
Hand floor scraper is your best bet. The glue from the Parquet will be very hard since these old glues almost crystallizes . Getting the high stuff off and then use a grinder if you need to get it to cement again. VERY dusty though..There are no solvents safe to use in a residential setting that will work . Depending on what you are going to put down again will determine just how clean you need to get the flooring. Any flooring questions you can e mail me through my avatar.GL