Wood 22 UFH system, floor prep and coverings ?

[Stuart Retter]

We are due to start tiling over the Terra Therma Wood 22 UFH heating system. What concerns me is the reflective plates that sit in the routed timber floor boards, they seem to be loose laid..... do you latex over them first or can you use a decoupling membrane direct on to the substate ....durabase matting for instance?

 

[The Tiler]

what does Terra Therma recommend?

 

[The Tiler]

just had a quick read and looks like its designed to have there wooden flooring over it not tiles

 

[Stuart Retter]

Terra Therma's tech data is not very helpful, I read it the same as you but I found another article the said you could. Im not comfortable after visiting site today....

 

[Spare Tool]

Aluminum spreader plates = nightmare

 

[Blunt Tool]

Aluminum spreader plates = nightmare

Is that not like @Simon Dale one where he is away to use 18mm Giffa but they said not to fix just float?

 

[The Tiler]

Terra Therma's tech data is not very helpful, I read it the same as you but I found another article the said you could. Im not comfortable after visiting site today....

I'd want a written method statement on how to fix tiles onto it before I'd do anything. Call them tomorrow

 

[Stuart Retter]

That exactly what I'll be doing, just wondered if you guys had come across it first.

Thanks for your comments.

 

[Spare Tool]

Is that not like @Simon Dale one where he is away to use 18mm Giffa but they said not to fix just float?

Yep...turned one nightmare into a floating nightmare, I have a method but its my method and not yet been advised by manufacturers, so afraid its not up for public discussion anyway it only hasn't failed the once so might have just been a fluke

 

[Blunt Tool]

That exactly what I'll be doing, just wondered if you guys had come across it first.

Thanks for your comments.

You might want to read this thread Stuart
Preparation - Underfloor heating between joists - https://www.tilersforums.com/threads/underfloor-heating-between-joists.87009/

 

[Stuart Retter]

ty

 

[Stuart Retter]

This is the actual I found on the net, it states tiles can be used as a finished covering but that's as far as it goes.

Let's see what Terra Therma tech dept has to say tomorrow......

 

[Dumbo]

I wouldn't just trust what they say . Ask which adhesive company they have tested it with because half of them just,are itas they go along . If they have tested it with an adhesive company speak to the adh company direct and ask them for the spec.

 

[The Tiler]

don't think you'd find many happy to fix tiles onto this whatever terra therma say, one to walk away from I think