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Posted: Tue Apr 15, 2014 8:35 pm
by Richard12
We lifted a very bad concrete floor in our old cottage and underneath we have a mixture of uneven flagstones, bricks etc. This floor is solid, we have been unable to lift any of it and if we need to we will have to smash it. my wife would like to have a black limestone floor laid, can this go on top and if so would it be advisable to use a lime mortar as there is no damp proof membrane. We do not suffer from damp at all and do not want to either. any help and advice would be appreciated.
Posted: Tue Apr 15, 2014 9:44 pm
by lutonlagerlout
first things first
dig out to correct levels
install a new subbase
install a dpm
install insulation
install a new concrete sub floor
install 75mm floor screed
install your limestobne
roughly speaking to do this you need to dig down around 350MM
LLL
Posted: Wed Apr 23, 2014 11:03 am
by Tony McC
...and while you are doing all that, it's worth considering under floor heating (UFH), even if you don't actually connect it all to a heat source at this point in time.
The pipework itself is relatively low cost, but if you wanted to retro-fit it in years to come, it becomes a very costly project. Bed the pipework into the screed now and then you can add the heat source at a later date.