Tiling Onto Timber Floor With 4 Inch Joists

[mattle40]

im sure you know already but didn't want to assume, you will still need a movement joint in the tiles.
Unless permat is capable of bridging sufficiently? But I'm sure Ray will clear that up.
Apparently it can but I'm always dubious of such witchcraft.

 

[Rizzle from the Portizzle]

im sure you know already but didn't want to assume, you will still need a movement joint in the tiles.
Unless permat is capable of bridging sufficiently? But I'm sure Ray will clear that up.
Apparently it can but I'm always dubious of such witchcraft.

well heres a couple of pictures of a test i put it throught you will have to make up your own minds how much movement you think you will have

 

[Rizzle from the Portizzle]

PS if you line your grout join up with the two floors this will give you even more movement scope