I am attempting to replaster a wall in a 350 year old house. The house is not listed.
Some of the previous plaster bubbled up and has now been removed. I have not removed any of the plaster that appears sound. It would appear that some of the old bricks are disintegrating i.e. they are dry and crumbly on the outer surface.
Is there any way to fix the bricks before plastering and do I need to strip off the whole wall?
I have noted a suggestion as to how to fix the bricks e.g fiberglass resin but wonder if a PVA product such as Unibond would also be suitable.
Thanks in advance for any suggestions.