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

On Apr 18, 7:35*pm, JimK wrote:
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

JimK wrote:
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

No coating will stay on where there is damp behind it