The wallpaper has been up at least 5 years and been painted previously .
We have been advised that it mayge due to Matt paint being used on top of silk could thi be the cause
Apologies if this has been covered before but I could't find a similar post.
We have just painted our hall and in some areas the paint has cracked when it has dried (the dreaded square cracks).
The paint was over wallpaper which has been painted previously. The cracks only appear in some...