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Posted to uk.d-i-y
Matthew
 
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Default Polycarbonate conservatory roof cleaning?

Hi All,

The conservatory roof in our new house looks like it hasnt been cleaned
for years. Its covered in green algae and clumps of lichens. Intitially
I will give it a blast with a pressure washer at the weekend, however
can anybody recommend a cleaning solution that is capable of removing
the algal growths without damaging the roof if power washing doesnt
work?

Thanks,
Matthew