In message , Terry
writes
David wrote:

"James W" wrote in message
om...
I have plasterboarded my ceiling with the 4 or 5 mm stuff. It is
screwed onto battons I had attached to the existing ceiling. It is
fine in most places, however at its worst parts you can push it in and
it bends in. Will I need to redo the whole thing with the thicker
plasterboard? Or will the skim coat a plasterer will apply be OK? The
ceiling is fairly high and in a bedroom so I dont expect many people
to be pushing and prodding it.

Thanks in advance

James

Standard is 9 mm for ceilings

D

Learn something all the time! Didn't even know one could get 4-5
mm plasterboard (roughly quarter inch?).

Yep, bit less in fact.

Though I didn't know PB that thin was available either, I've never ever
seen it.

Or do you mean something else James?

Thirty years ago, here,
the most commonly used (residentially) was three eighths (9mm).
Now half inch (12mm) is standard for just about everything, cos
of 'fire rating'!

12 mm is pretty common now, though so is 9.5 mm as well.

To answer James, no if it moves then plastering won't help. I would say
that at the very least you need to overboard with 9.5mm board.

--
Chris French, Leeds