Bathroom Dry Lining

The plasterer came today to do the first stage - filling in the gap where I had accessed the wires with a triangular piece of plasterboard, dot and dab the walls, and apply a 'bonding' coat to the original plasterboard wall, damaged when the old tiles were removed.

This is the bonded area :

The dry lined walls :

And the newly constructed window-cill lining :

All of this has been done with foil backed plasterboard sheets to give a vapour barrier.

To do the dry lining, first, major irregularities in the stone wall were knocked off with a special pointy hammer (I am sure it has an "official" name, but I don't know it - probably "plasterers hammer"), then the wall was painted with diluted PVA.  A special adhesive plaster mix is used in blobs (the dots) which are "dabbed" on the walls, and then the plasterboard pushed up against it.  I guess it is a bit like giant tiling.  I am not sure how long it takes before the plasterboard is properly grabbed, as I didn't see any of it go up.  It is very effective though - because of the preparation, it hasn't taken any more depth out of the wall than a sand/cement render coat would have, and now the room is ready for the finish coat, which should be happening on Wednesday.