Hello, really would appreciate some advice please.

[Clunk Driftwood]

Self levelling compound on a ply floor.

Hi there, wondering wether I could get some advice please. I'm planning on tiling my kitchen floor. I've got an 18mm ply floor, am going to lay warmup electric UFH matting and want to lay a self levelling compound on top prior to tiling. Is there a minimum recommended thickness I want to achieve? Any advice would be appreciated. Many thanks

 

[Del W]

Welcome to TF.Before you do anything,make sure there is no bounce in your floor.

 

[The Legend; Phil Hobson RIP]

I would lay a backerboard over the ply, the UFH mat, then cover the wires with slc. Ply is not the perfect surface to tile on imo.

 

[White Room]

Hi and welcome...have you considered some thermal boards on the ply....

 

[suave]

welcome!

 

[Dan]

Welcome aboard.

 

[Andy Allen]

as above......ply...if deflection free.........thermal boards........ufh mat..........good quality flexable slc...

and welcome to the forum

 

[Ian]

Welcome along to TF

 

[Clunk Driftwood]

Thanks for all the responses. Ive got 150mm celotex under the timber floor. Would I need thermal boards on top as well. Also, timber floor is 22mm chipboard + 18mm ply. Would this need anything else before tiling? Where I've knocked through the timber floor meets a concrete floor which I'd guess will require insulating too. Could anyone tell me what would be the best detail where the floors meet? Many thanks.

 

[charlie1]

Hi Clunk,

you will need an expansion gap where the 2 floors meet (concrete and timber (if i understand you correct))....basically instead of grout, you could use a pre formed expansion joint or simply dont grout and fill with silicone.

 

[Diamond Pool Finishers]

love the name clunk