Hi, I have removed marble tile from my entry way for the purpose of putting wood floors down throughout the house. I didn't realize that 2 inches under the marble tile would be what seems to be a sand bed before getting to the cement foundation. For the sake of putting down a glue down wood floor on top, what do I need to do to that 2 inch bed after having removed the sand to prepare for putting down the wood flooring?
I've heard several different opinions so need some more please!
I'm assuming that you need to build the floor up to keep the levels common? I guess it would depend on the actual height you need and how flat the slab is. Some more details might help formulate a path forward. I'd lean toward sleepers with a T&G ply subfloor, but it would depend on the results of the height buildup and flatness.
Important note - I'm not a pro
Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013