Filling the gap between wall and tiles. What product?

[Collision]

AlanP. Sorry, I don't think my reply earlier was very clear. I did scribe them, that's why each tile has 6-8 different cuts (along the edge adjacent to the wall) but the stone wall is so uneven that still leads to the varying expansion gap size.

Hope that makes a bit more sense.

 

[Ian]

Any chance of a couple of pictures please? If we can see what you do, it may help us find the best solution for you. The mortar to match the walls is looking like the best choice at the moment.

 

[Collision]

Thanks Bri, will try and sort out some pics when I can.

If I fill the expansion gap with mortar, what happens when it expands?

 

[bugs183]

Try and source the local sand that was used to build the walls, mix that at 3 parts sand to one part cement ,and mix with SBR.
Rough point between the wall and the tiles. Leave until its just starting to set and then mould to the desired shape with a small trowel and an old brush.
The SBR should give the cement enough flex, silicon is going to look awful.

 

[afright]

I would put a sand & cement fillet with a small upstand using a batten say a thin door stop and trowel to the batten then it might tie in with the wall and look a bit neater,as above mix with SBR.

 

[Collision]

Thanks for all the suggestions guys. I've been hanging back until I could get some pictures up but I'm still unsure of using sand and cement to fill the gap.
Is there going to be enough give in it to allow for movement?
Also it's going to have to be a lime mortar (well that's what the wall's pointed with) can I use SBR with that?
And will that(lime mortar) make a difference to the flexibility to allow for movement?

 

[AliGage]

Lime mortar is pretty flexible as is.

 

[White Room]

If you use lime mortar personally I would'nt add any sbr to it.