Away to lift a floor in the house (was a kitchen originally but changing it to a living room) current make up of floor is flagstones, covered with bitumen resin then a 40mm screed.
I propose to lift existing, scrape it back a bit, lay 25mm sand blind, Dpm, 75mm kingspan then a concrete slab made with 10mm ballast onto which I'll directly lay my finished floor (underlay and engineered oak) I don't want to have to lay a screed on top of concrete.
My question is what minimum thickness of slab would I get away with and would it have to be reinforced?
Thanks for any help
I propose to lift existing, scrape it back a bit, lay 25mm sand blind, Dpm, 75mm kingspan then a concrete slab made with 10mm ballast onto which I'll directly lay my finished floor (underlay and engineered oak) I don't want to have to lay a screed on top of concrete.
My question is what minimum thickness of slab would I get away with and would it have to be reinforced?
Thanks for any help