My living room has a concrete floor and adjoins my dining room. The dining room used to be a kitchen in a pre-extension life and has a screed floor. The screed floor is about 20mm higher than the concrete floor of the lounge.
I have some existing hard wood flooring (maybe 20mm or so deep) to go over the screed and will be laying carpet in the lounge.
My question is twofold.
- How close in height does the concrete and screed need to be in order to get a smooth transition?
- How would I go about raising the concrete floor? I was hoping to lay some ply.
The house is 1930s. The concrete floor was added at some point later to replace a cavity floor. There is a channel, 100mm wide, around two edges of the concrete floor (including the edge with the transistion) where old heating pipes are laid.