Hello
I currently have a subfloor (house built in '44) on which I plan to lay 14 mm oak parquet. To reach somewhat the same height compared to the adjacent rooms, I thought of laying floor gypsum under the parquet, partly because it is cheaper and partly because I find it easier to lay. The question is, is this OK or not and if so, should I screw and glue the gypsum, or is screwing alone sufficient? Grateful for answers
/Hobber
