What are the arrows on the back of porcelain tiles for

[jonnyc]

ok i get that and think i agree .
but i do not have issues with tile size,only bowing, but appreciate you taking time to ask.
its quite an interesting issue.
the main reason i did not follow the arrow was that the box of infinitum instruction did not mention arrows and because the tiles had a vague directional movement to replicate marble which repeated every 7 tiles i thought by turning the tile randomly i could effect a floor with 28 different permutations rather than 7 and thereby look totally random.
sometimes thinking about something can cause more problems than necessary eh?

 

[Delta Stark]

From what I know, which isn't much, arrows on the back of a tile class the tile as 'handed' and they should be fitted with all the arrows pointing the same way...that's all I know.
As for lipping, most tiles measuring between 50cm and above at any point are subject to 'bowing' so lipping is almost unavoidable.

 

[widler]

Christ,I've fit loads of porca floors and got half way through and noticed the arrow,then thought,sheet,next one I'll follow the arrow,nope always forget to look 🙂

 

[radim]

this is pic of pack of porcelanosa tiles.

sorry for upside down pic, don't know how to rotate.