Question by Karren R: How do you clean green house fiberglass roof panels?
Moved to older house with attached greenhouse. There are 3 fiberglass panels on roof. Have cleaned off most of the black ‘gunk’ but they still show lots of dirt areas. What’s the best way to clean and what’s best to use?
Best answer:
Answer by uk_staffie
Try some AutoGlym Caravan and motorhome cleaner. I have used that on many different fiberglass things, even on my boat. Works really well and seems to remove all the black and green algae.
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