Tile flexible adhesive

[63customs]

Hi im putting underfloor heating in the kitchen and was wondering can I use any tile adhesive to fix the insulation boards or does it have to be flexible adhesive. I know I need flexible adhesive for the tiles. Any help would be appreciated

 

[Andy Allen]

Any Adhesive suitable for ufh would be fine....
For instance weber set plus is suitable for ufh, but isn't marketed as a flexible adhesive....... Most adhesive suitable for porcelain tiles have a certain amount of flexibility....... But as always read the bag or check with the manufacturer..

 

[Andy Allen]

BTW..... I was assuming it was a concrete floor not wooden....??

 

[63customs]

Thanks for That, yes it is a concrete floor. I' watching to many videos on tiling and I'm starting to over think what should be a straight forward job. It' just that I'm laying 1m x 230mm tiles and need to get this right as they are quite expensive

 

[Andy Allen]

It's quite straight forward....
Prime the floor with suitable acrylic Primer, stick down the insulation boards, when dry lay the ufh, level over the ufh using a flexible SLC, prime the floor then tile using a flexible adhesive, when dry grout using a flexible grout, leave for 3 to 4 weeks to fully cure then turn the ufh on low to start, building up the temperature gradually just a couple of degrees per day until its up to temperature.

 

[63customs]

Thanks for that Andy I appreciate it