Hardibacker

[Gentleman Jim]

Morning all!
Having trawled through these pages I see lots recommend the use of Hardibacker for shower cubicles. Has anyone ever fixed the boards directly onto the wall?
My customer wants to avoid bring the tiling out too far and I was hoping I could "smear" the back of the board with Silicon and attach to the wall then drill through board and wall and use plugs and screws for final and permanent fixing. The wall is 1930's concrete block.
Any comments?
Regards
Jim

 

[DHTiling]

I would use rapid flex to fix boards ..use a straight edge to get them flat..leave the adhesive to dry then screw and plug that way the screws wont pull the board out of shape/uneven...........dave..