How do I Join this 45 degree (ish)

[Filip]

I have a floor slope that I think I am going to tile with a PEI rating of 5 full bodied porcelain floor tile 7mm but how would you join the transition. I thought I would go with a quadrant but it does not work - as picture (but it will be stainless steel or aluminium ).
Do I just do a grout join or perhaps a triangle trim would work - or do I mitre the two tiles

 

[Albert]

You only need to mitre one edge

 

[Filip]

Thanks - do I leave a little gap to get something in there - grout or Silicon or do I butt both tight together. But if I did a tight butt join via a mitre I am worried about water getting in there and freezing. And what about expansion because if it was grout it would be a flexible one. By the way the tiles are 300 x 300 and I have cut a sample down that I brought to -A. test my cutter on this PEI5 stuff and. B - see how the slope would look

 

[Albert]

I would leave a tile joint on the edge

 

[Flintstone]

The top tile is too far forward, take it back until they align correctly and mitre of of the tiles, I would do the top one rather than the slope personally, and create a grout joint the same as all the others.

 

[One Day]

Water WILL get in and freeze no matter what you do.
I'd strongly suggest you get the basics right first, as in a proper drainage layer, or all your efforts will be loose after one normal British year!

 

[Filip]

Ok so a grout join, the slope needs grinding down in sections as some of it is curved and some is straight so after a little grinding I should get a better fit. So by mitring I am creating a continuous same size gap the full 7 mm depth of the tile, At the moment the tiles have a slight mitre in the opposite direction meaning they touch underneath and have a gap at the top. Would this touching on the bottom create expansion issues and is that why we mitre AND grout.
With a profile I was looking to protect the edge of the tile but they are full bodied so any chips will not be noticed --right ?

 

[Filip]

Water WILL get in and freeze no matter what you do.
I'd strongly suggest you get the basics right first, as in a proper drainage layer, or all your efforts will be loose after one normal British year!

Hmm - snow does get blown in and also rain on the outer edge but a whole drainage thing (perhaps ) is a little extreme - it is protected on 3 sides and has a roof that overhangs the tile area also the whole that side of the house faces away from the prevailing winds.
I may yet abandon the whole idea of tiles and go for a grey penny lino thing.
Tiles are so "DIVA"

 

[Filip]

I would leave a tile joint on the edge

Thanks

 

[Slippery]

I would rather square the slope up before tiling, the top of the slope is already cracked!