"Mary Fisher" wrote in message
t...

"Matthew" wrote in message
ups.com...
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?

Spouse simply sweeps our carport roof with a brush and mains water through
the garden hose.

It's a long area and spans two drives. He has to get up there to do it but
since he built it he's confident of its weight bearing properties.

Mary



Thanks,
Matthew


Be cautious with use of pressure washer it can and will penetrate any
poorly sealed area. If you can obtain some Traffic Film Remover also known
as Truck Wash - diluted and sprayed over algae etc leave for 10 mins and
hose it can be very effective.

PhilC