See pic below.
Basically that small separate room was used as a cupboard, which is now being turned in to a shower with a low level tray. The floor in here is made up of old Victorian quarry tiles which are pretty soiled.
The bathroom itself has a suspended floor. The trouble is the shower area is approx 25mm higher than the suspended floor in the bathroom, and I need these 2 floors to be level as to tile straight through.
I've thought of a few options but need opinions. Do I raise the level of the bathroom floor with 18mm ply on top of the existing boards, then 6mm cement board fixed with adhesive to the ply? This will bring it up to pretty much the same level of the shower room. I also need some de coupling membrane to bridge the threshold between solid and timber floor, can this be used in a small section as opposed to over the whole floor?
Or do I remove the tiles etc in the shower area and re-screed, then just fix 6mm hardibacker to the existing floorboards in the other area? This will mean the floor in the bathroom area won't have to be brought up as far, reducing the height in to the room. Only thing is I want to be able to tile the shower area within 7-10 days?
Basically that small separate room was used as a cupboard, which is now being turned in to a shower with a low level tray. The floor in here is made up of old Victorian quarry tiles which are pretty soiled.
The bathroom itself has a suspended floor. The trouble is the shower area is approx 25mm higher than the suspended floor in the bathroom, and I need these 2 floors to be level as to tile straight through.
I've thought of a few options but need opinions. Do I raise the level of the bathroom floor with 18mm ply on top of the existing boards, then 6mm cement board fixed with adhesive to the ply? This will bring it up to pretty much the same level of the shower room. I also need some de coupling membrane to bridge the threshold between solid and timber floor, can this be used in a small section as opposed to over the whole floor?
Or do I remove the tiles etc in the shower area and re-screed, then just fix 6mm hardibacker to the existing floorboards in the other area? This will mean the floor in the bathroom area won't have to be brought up as far, reducing the height in to the room. Only thing is I want to be able to tile the shower area within 7-10 days?