When we had our bedroom lime plastered one wall was sloping quite significantly, the plasterer put up some breathable wood fibre board on the upper part of the wall then plastered over.
Walls are built in random stone.
It's still not 90deg but we don't care, probably wouldn't have cared if they plastered straight onto it! But we have our wardrobe against that wall so probably nice to have it more towards vertical than not
When we had our bedroom lime plastered one wall was sloping quite significantly, the plasterer put up some breathable wood fibre board on the upper part of the wall then plastered over.
Walls are built in random stone.
It's still not 90deg but we don't care, probably wouldn't have cared if they plastered straight onto it! But we have our wardrobe against that wall so probably nice to have it more towards vertical than not
1 Attachment