Hi, I have some problems with a ceiling. I had some damage when my son
let the bath overflow! this caused a crack and an area of skim to go
live. When I came to sort it out, I found that with very little effort
I was able to remove all the skim from the whole cieling, leaving the
plasterboard clean! First question, why hadn't the plaster adhered to
the plasterboard? I had the ceiling replaced when we moved in, 20yrs
ago. It has always cracked along the joins in the plasterboard. When I
removed the skim I found that the board is moving on its nails, which
have punctured the card surface of the board. There are no noggins in
between the joists supporting the joins. Is this usual? Thanks for your
time.

wrote:

Hi, I have some problems with a ceiling. I had some damage when my son
let the bath overflow! this caused a crack and an area of skim to go
live. When I came to sort it out, I found that with very little effort

By live do you mean "lose" or "240V" ?

I was able to remove all the skim from the whole cieling, leaving the
plasterboard clean! First question, why hadn't the plaster adhered to
the plasterboard? I had the ceiling replaced when we moved in, 20yrs
ago. It has always cracked along the joins in the plasterboard. When I
removed the skim I found that the board is moving on its nails, which
have punctured the card surface of the board. There are no noggins in
between the joists supporting the joins. Is this usual? Thanks for your
time.

If the joins to which you refer are just the short spans that run
perpendicular to the joists, then it is not unusual to have no noggins
there since you are only talking about 40cm of unsupported board edge
typically. If however you are saying that whoever replaced the ceiling
allowed a whole board to overlap a joist, and meet the next one in the
middle of a gap then that is a bodge!

Nails are not ideal for fixing boards to the ceiling IMHO. The proper
drywall screws make a much better job and are less likely to work lose.
You could add these now to fix the whole thing in place. Screw every
40cm or so along each joist.

The joints between all the boards ought to be scrim taped as well before
they are re plastered - that ought to stop the cracks appearing at the
joints so easily.

--
Cheers,

John.

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| Internode Ltd - http://www.internode.co.uk |
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| John Rumm - john(at)internode(dot)co(dot)uk |
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John Rumm wrote:

wrote:

Hi, I have some problems with a ceiling. I had some damage when my son
let the bath overflow! this caused a crack and an area of skim to go
live. When I came to sort it out, I found that with very little effort


By live do you mean "lose" or "240V" ?

Or in fact 'loose' ?

The Natural Philosopher wrote:

By live do you mean "lose" or "240V" ?


Or in fact 'loose' ?

that as well ;-)


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/