In order to add a bathroom to a house on a concrete slab you will need to locate the existing water supply and waste lines.
Batjroom floor over concrete slab.
Then design a bathroom layout that will function properly with the existing plumbing plan or with limited modification.
Cover the sleepers with 6 millimeter plastic and then lay down 5 8 inch plywood.
Laminate flooring is a good alternative to wood flooring in basements.
To properly install tile over concrete the bathroom slab floor needs to be smooth and level.
The best options for flooring over a concrete slab foundation are wood laminate carpet or tile for your whole house.
Sketch the new design in place if possible fine tune the design and then finalize the plan.
A foam underlay is placed over the concrete and the planks are then clicked into place in a tongue and groove pattern.
The ideal way to put down a wood floor over concrete that is subject to dampness is to first put down pressure 2 by 4 inch sleepers or lengths of wood on the floor that are spaced 16 inches apart on center.
Any cracks in the surface of the slab need to be repaired before you begin as well.