Newbie Advice needed

[Silver Birch]

Hi all I am relatively new to this after completing a rather poor college course.
A friend has asked me to tile three bathroom floors with sparkly quartz tiles - no ufh - smallest one on cement substrate other two on 1st floor on chipboard. Am I right in thinking I should stick and screw 6mm hardi backer or similar to chipboard and then tile over with a flexible adhesive?

Obviously these tiles look better with a small grout gap, would I be better off with a flexi grout and increasing the gap to avoid any movement?

Any advice appreciated.

Cheers

 

[White Room]

I'd be using a 2 part addy....

 

[High Peak Tiling]

Like Beam said and yes, screw 6mm backer board crossbonded. Make sure the floor has no deflection before boarding over though.

 

[jollyroger]

Done a job with these tiles recently. I would glue and screw 6mm Hardi or similar to chipboard. I also used 2 part addy. If you want a small grout joint why not invest in some lash clips.

 

[Silver Birch]

Thanks Whitebeam
It is a money no problem job so won't have to scrimp. Was thinking BAL or Mapei addy and grout, any personal preference?

 

[Silver Birch]

Thanks for the advice much appreciated

 

[Silver Birch]

Hi Jolly Roger
Cheers for that advise, not used Lash clips before, are they easy to use? Which brand would you recommend?