My daughter has bought a house with a rather nice 7 foot wall along one side of the garden. It is in good condition but others in the development have some badly spalled bricks along the top. Her wall looks very damp from the top down. (Built 1988)
I am wondering if there is anyhthing I could paint on to reduce water penetration and the likelyhood of damage when the frosts come (probably too late this year - perhaps a summer job it anyhting is suitable.