I am in the process of striping old crumbling lathe and plaster in a granite house .Internal walls are no problem I can screw new plasterboard on after insulating. The problem is on external walls. It seems 100 years ago wooden pegs were knocked into the uneven surface of the granite and wooded battens attached to these. These pegs are now decaying and the battens becoming loose. Could anyone advise on what to do.
1. screw metal batterns to the wall and use variable spacers to bring the wall to the same distance.(is this stuff available)
2. screw wood to the wall and padd out to same distances. what about dampness with the wood
The current spacing between stud and granite is 30mm and I was hoping not to have to build false stud partition walls. This has sort of stumped the DIY plan
sorry for the long explanation Thanks