Advice on expansion gaps

[dantheram]

It will always crack, no matter how wide the grout gap is. It's a different material, so expansion will occur at different rates.. The thin bead of clear silicone will be enough to hide the crack.

wont it just look like a clear line over a crack though - i'm going to do it as it makes sense but just wondered what the end product will look like.

 

[beanz]

It's enough to take your eye off it. The silicone, sort of, reflects the colour of the grout. Or I suppose "refracts" would be more accurate.

 

[AliGage]

Does your floor have any under tile warming?
I wouldn't cut the tile slow close. Leave about 4/5mm and silicone fill. Not grout. What colour grout are yet going for? Pick a matching silicone or one that coordinates with the finish of your kitchen units

 

[beanz]

Does your floor have any under tile warming?
I wouldn't cut the tile slow close. Leave about 4/5mm and silicone fill. Not grout. What colour grout are yet going for? Pick a matching silicone or one that coordinates with the finish of your kitchen units

Thats a good point about the underfloor heating/warmup mats. Although technically correct, I wouldn't bother if there's no heat involved, as I don't think it's as nice a finish. Personal preference I guess.

 

[dantheram]

I have heating mats down so will have to use the 4mm gap and silicone fill.

Grout is gunmetal, units are beech colour.