Hi all,
I want to know if I can put a new slab over and existing slab to raise the floor height.
The existing slab is only a few months old, but the builder has poured it at a level that means we will require a step to get in to our living room.
The current difference in level is 255mm (plan says 100mm) So I am wanting to pour a new slab over the existing one to raise it up to the specified 100mm difference. That means our rear yard concreting will be at a better level and we wont have to dig out the drains to reset them at a lower level.
http://i104.photobucket.com/albums/m184/cgem21/garagefloorlevels.jpg
Also, Do I need to lay anything between the slabs or can I just have an extra 150mm thick slab poured?
I was thinking that perhaps I'd need a few holes cut in the existing slab to have footings or piers dug to make sure the weight doesn't sink the level too much in the future?
Anyone have any ideas about how to raise this floor?
FWIW I thought it would be wasting money to rip up the existing slab, thats why I want to put the new one straight on top.
Thanks in advance