Re: A question for plasterers

Mike wrote:
> Pretty frequently now on newly boarded skimmed ceilings .... after
> the plasterer has well gone (3 months ish) I am finding that where the
> boards are screwed to the supports, the plaster is failing in little
> disc shapes ..ie, it falls right off in some cases. It is a high rate
> of failure in old and new builds.
>
> What is the cause ... not screwed in enough, or screwed in too far and
> breaking the paper?
>
> Whatever it is .. it wants sorting !


We've lived in our current house for 27 years which was a new build.
Internal walls downstairs block and upstairs plasterboard. I've made no
alterations during the time we have lived here apart from chasing in a
couple of cables. The roof is supported by preformed trusses.

In all the time we have lived here, I've had to replace about 6 plasterboard
nail divots. Most were when the house was about 10 years old. We originally
had 50% double glazing and 50% secondary. Initially, though despite having
eves ventilation of the roof space, we did have condensation issues. I
resolved these by initially having a dehumidifier on the landing as most
condensation was upstairs.

Eventually, I learnt that the principal source in our house was from the
kitchen and as a result placed the dehumidifier in there with great success.

We store a significant amount of "valuable", no, not true, but sentimental
stuff in the loft some of which is of considerable weight. These things are
are placed across the timbers with no boarding. I guess that I go into the
loft two to three times a year striding along the timbers.

This is only a thought: it could be variations in humidity and temperature
that are causing divots to fall out.