Cracked tiles in new bathrooms

[Help required]

Given the extensive experience on this board, I'm hoping someone can help. I've just had a house built, and cracks have appeared in the tiles on the bathroom walls. The cracks appear to correspond to the joins in the backing plasterboard sheets. The silicon in the corners where the tiles meet has also come apart in several places. The builder used the recommended heavy duty plasterboard specified for bathrooms, which is fixed either to brick or stud wall.

The builder claims the cracks are due to the building moving. Whilst possible, this does not seem to account for all of the issues. An alternative theory could be that the plasterboard has shrunk very slightly, thus cracking the tiles and pulling the silicon apart in the corners.

Has anyone come across this type of issue before and what do you think the cause may be?

 

[Dave]

It came from me , some metal stud walls have uprights centred at 900 , not saying yours are though , just food for thought as they say.

 

[Just Rizzle]

every one seems to be guessing why don't you get in a structural engineer he will advise you on why it is stressing If your that worried and he will know if the builder has taken short cuts most of these guys know there stuff
you may need there report if your to take action against your builder.