Dave Plowman (News) wrote:
In article ,
The Natural Philosopher wrote:
www.GymRatZ.co.uk wrote:
BigWallop wrote:

Or am I missing something again? :-) I know I do that a lot. LOL
Tape only stops the plaster falling out it doesn't prevent cracks
between sheets.


Oh yes it does.

Are you saying you have plasterboard ceilings in your old house with no
cracks anywhere?

Well its new.

But there are no plasterboard to plasterboard cracks except where I know
the wood frame is still shrinking massively. That's torn out a ceiling
to wall joint in one place.




Especially if your joists are long and made of something flexible
like... wood and you have people walking (or small children jumping)
around up there.

Well nothing bar structural modification will help in that instance. Or
infanticide.

Wood moves with the seasons. Plasterboard not.

Not enough that the nails underneath cant cope. After a season or two
when the plaster has all popped of the heads, you fill, and the boards
stay where they are as the wod moves ;-)


Its only about 1% summer to winter along the grain, if that.