a relative has had a garden makeover involving a rendered retaining wall (2 - 3ft) behind which are flowers/shrubs etc in soil level to the top of the retaining wall.
Looked fine when unpainted and new, then a bit mouldy so he cleaned then painted the wall with exterior masonry paint - 1 year later the paint is flaking off and he is not impressed.
What should he do to enable the paint to stick properly next time?
I am assuming that damp from the flowerbeds etc is the main culprit?
Cheers JimK
If you want paint to stay on it, use porous paint rather than impervious masonry paint, or the same will recur, plus a fair chance of frost damage to the bricks in winter. Clean what paint you can off and lime paint it. Lime lasts fine, will let the damp dry off, and of course is very cheap.
NT
No coating will stay on where there is damp behind it
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