Laying large limestone tiles over UFH - TilersForums.com

[Schoolrunmum]

I'll have a go at most things, but we have so many jobs to do we are getting a tiler in, but we have had 2 quotes, and both advised different things....

 

[Time's Ran Out]

Tell us what was advised for an opinion.
Have they been recommended and have you seen their work .

 

[Ajax123]

Hi Alan, apparently it's Classic...laid by Southern Screed..it's 50mm on Kingspan 80mm approx with wet UFH x

that's fine. I know they don't make a TS40 cos I work there... Classic is just the normal all purpose screed so treat as per advice above.

 

[Schoolrunmum]

that's fine. I know they don't make a TS40 cos I work there... Classic is just the normal all purpose screed so treat as per advice above.

Thanks all, we have been told variously to use fast drying adhesive, then slow drying, flexi and non flexi, and a decoupler...confuzzled!

 

[widler]

Go with the one who says flex and decoupler.make sure they sand ,vac and prime though , gotta be done on anyldrite

 

[Ajax123]

with ufh it must be flexi as you will get differential thermal expansion and contraction and uncoupling is a specific recomendation of the british stone federation. i agree with widler... go with the one who says flexi and uncoupling as he at least sounds like he knows what he is talking about. slow or standard set means you would not be able to traffic the tiles or grout them for at least 24 hours. i dont do much tiling myself and then only for myself but even so i prefer rapid set

 

[Schoolrunmum]

with ufh it must be flexi as you will get differential thermal expansion and contraction and uncoupling is a specific recomendation of the british stone federation. i agree with widler... go with the one who says flexi and uncoupling as he at least sounds like he knows what he is talking about. slow or standard set means you would not be able to traffic the tiles or grout them for at least 24 hours. i dont do much tiling myself and then only for myself but even so i prefer rapid set

Thank you all for the input-last question, I have been told I need to seal floor with a polymer primer...can anyone recommend one? A google search comes up with a Wickes own brand one- wickes Primer and Admixture, a copolymer based on n-butyl acrylate and styrene, and a BAL APD acrylic primer. Are either of these suitable?

 

[widler]

Which ever adhesive you are using use the same make primer , so if you are using bal use the bal primer