Limelite Renovating Plaster

[Guest]

Caps lock is activated.

[Richard]

Nine months ago we used Limelite Renovating plaster (from Tarmac) to repair the lower part of, what is now, an internal cob wall.  This had previously been plastered with gypsum plaster and wallpapered and had started to break up.  There are still some damp patches at the bottom of the wall.  Is this likely to be because the plaster was not suitable or does it maybe indicate a further problem ?

[Paul]

This could be due to using the Limelite. Lime plaster itself is the best to use on internal walls.
Is the wall an internal partition or is it the inside of an external wall? If it is the inside of an external wall, what is on the outside of the wall, Cement or Lime...or neither?
Also, once you used the Limelite, did you paint over it or wallpaper over it?

Paul

[Richard]

The wall is a partition now, as an extension has been added to the original cottage.  As yet I have not papered or painted the wall.  I have some Claypaint (from Earthborn) ready to apply but their advice is not to use whilst the wall is still damp.

[Paul]

Being what was an external wall, did you remove the coating from both sides of the wall and then replaster?
It does sound like there is water still trapped in the wall on one of the sides.
The cause of this you will have to look into, like you are doing.

I suggest that you think back and make sure that all of the coatings were taken off the wall, back to the cob, prior to replastering.
If this has been done, then i suggest trying a complete lime plaster.
This can be obtained from many places, although we recommend here http://www.mikewye.co.uk/mikeprices.htm#limeplaster

Limelite isn't sufficient for Cob as it still contains cement.

Paul