Can anyone offer some guidance on a proposed concrete floor job I have?
It's to be laid over an existing concrete floor that is considerably lower than required, outside level is 6" higher than inside and I'd like to bring inside up to this height. The existing floor is a long way off level and this I'd like to remedy, it runs from 6" at the lowest point (the doorway) up to about 3" at the highest point of the existing floor. The existing concrete floor is sound, no cracks or reason to doubt it's strength.
Much as I'd like to insulate the floor I think this is impossible due to the existing out of level floor only leaving 3" proposed thickness, I could easily wrong as I'm not experienced in concrete floor methods and maybe someone can advise a way?
Presuming insulation is impossible can anyone advise on construction method to lay concrete on the existing to bring me up to the level I'd like? a layer of sand first? how thick? plastic on top of the sand?
Because the slab will potentially taper in thickness I'm thinking maybe this will be a mistake?
I'd like to stay with the dimensions mentioned but maybe the advice is the bring the floor surface a bit higher? It's possible but does shrink the floor/ceiling clearance to the point where I'm getting closer to the ceilng beams (of interst is their dimension, 20" x 10" and 8.5 metres long!)
Room dimensions are 8 metres by 6.5 metres.
This will be my machine room, no earth shakers but some fairly big cast iron.
I'm not for hacking out the existing floor, it's likely to be crazy thick in the farmstead style.
It's to be a nice floor but not needed to be a mega spec, strong and likely to behave is the desire.
I'm not experienced with concrete so all guidence much appriciated.
It's to be laid over an existing concrete floor that is considerably lower than required, outside level is 6" higher than inside and I'd like to bring inside up to this height. The existing floor is a long way off level and this I'd like to remedy, it runs from 6" at the lowest point (the doorway) up to about 3" at the highest point of the existing floor. The existing concrete floor is sound, no cracks or reason to doubt it's strength.
Much as I'd like to insulate the floor I think this is impossible due to the existing out of level floor only leaving 3" proposed thickness, I could easily wrong as I'm not experienced in concrete floor methods and maybe someone can advise a way?
Presuming insulation is impossible can anyone advise on construction method to lay concrete on the existing to bring me up to the level I'd like? a layer of sand first? how thick? plastic on top of the sand?
Because the slab will potentially taper in thickness I'm thinking maybe this will be a mistake?
I'd like to stay with the dimensions mentioned but maybe the advice is the bring the floor surface a bit higher? It's possible but does shrink the floor/ceiling clearance to the point where I'm getting closer to the ceilng beams (of interst is their dimension, 20" x 10" and 8.5 metres long!)
Room dimensions are 8 metres by 6.5 metres.
This will be my machine room, no earth shakers but some fairly big cast iron.
I'm not for hacking out the existing floor, it's likely to be crazy thick in the farmstead style.
It's to be a nice floor but not needed to be a mega spec, strong and likely to behave is the desire.
I'm not experienced with concrete so all guidence much appriciated.