Can you lay a thin layer of concrete on a stone floor?

[Kristin Persson]

Hi!

We have a house with stone floors that need a refresh. I like concrete and would love to have it here. We have underfloor heating under the stone floor and want to avoid disturbing that, so I'm wondering if I can lay concrete directly on the floor? Since it connects to another wooden floor, I would need the thinnest layer of concrete possible to avoid a height difference. I've been advised to use microcement but don't quite think it achieves the look of concrete. Can anyone answer my question and maybe have some tips??

 

[yonna]

Significantly more concrete is required if cracking is to be avoided. The most sensible option is probably to refresh the existing stone floor.

 

[Plupp 405730]

Hello!

We have a house with stone floors that need refreshing. I like concrete and would love to have it here. We have underfloor heating beneath the stone floor and want to avoid disturbing it, so I'm wondering if I can lay concrete directly on the floor? Since it adjoins to another wooden floor, I would need as thin a layer of concrete as possible to avoid a difference in height. I've been advised to use microcement but don't quite think it achieves the look of concrete. Can anyone answer my question and perhaps have some tips??

Hi,

It's difficult to cast less than 40-50mm since you need to reinforce against cracking, so casting is rarely an option due to the height. But google microcement if this could suit you, easier to apply and doesn't add much in height...

 

[Jonatan79]

Hello!

We have a house with stone floors that need refreshing. I like concrete and would love to have it here. We have underfloor heating beneath the stone floor and want to avoid disturbing it, but I'm wondering if I can pour concrete directly on top of it? Since it connects to another wooden floor, I would need the concrete layer to be as thin as possible to avoid a height difference. I've been advised to use microcement, but I don't think it achieves the same look as concrete. Can someone answer my question and maybe have some tips?

How deep is the underfloor heating? I think you can remove the tiles without damaging the underfloor heating.

 

[Kristin Persson]

Actually don't know! How deep is underfloor heating usually?

 

[Kristin Persson]

Hello,

It's difficult to cast less than 40-50mm since you need to reinforce against cracking, so casting is rarely an option due to the height.
But google microcement if this could suit you, easier to perform and doesn't add much height...

Understood! Thanks for the response and information.

 

[Plupp 405730]

Actually don't know! How deep is underfloor heating usually?

Also, you don't know if it's been filled under the stone floor, so it could be a lot of work.