Shop Front Preparation. - Tile Advice

[Flintstone]

I've got a shop front to tile in April, under the windows and up the sides, about 8m.
Can anyone suggest what might be the best thing to board it with so I can inform the shop owner to make sure it's done right prior to me going to tile it. I was thinking 12mm nmp?

 

[One Day]

12mm nmp would be ideal if you want a background which will absorb all the moisture it kind find!

I'd specify Wedi board or Kerdi board personally.

 

[Time's Ran Out]

If you board it how do you finish the edges?
What's there at present and if brickwork why not render and tile it.

 

[Flintstone]

I have no idea what there gonna do to the front it's having all new front so could be anything really.
Wediboard could be a good shout.

 

[White Room]

I'm with TJ sand/cement is takes some punishment.

 

[kevsalt]

why not just use flexi rapid with a deep trowel ...frost resistant ...recomended for external work,,,why complicate things

 

[Flintstone]

why not just use flexi rapid with a deep trowel ...frost resistant ...recomended for external work,,,why complicate things

I'm not complicating things, I'm also not fitting the shop front but at present there is two large windows which I assume there boarded underneath as there is some movement. unless there going to brick it up and render it this time, I'm not sure