How to kill green stuff on exterior walls prior to painting?
AL_n wrote:
Hi again,
On the painted exterior rendered walls of my house there are some areas
that have become coated with a typical very fine layer green stuff, mainly
where the wall is damp due to a leaking gutter which will be fixed shortly.
The green stuff is extremely thin. What is a cheap, effective, easy way to
kill or remove this, prior to painting with exterior emulsion?
Pressure washer.
Would household bleach work? It seems to work well on interior mildew.
Al
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