Q&A: How do you clean green house fiberglass roof panels?

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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Q&A: want to build a passive solar heater for my green house,made panels from sliding glass doors,where does pump g

Question by buzbub40: want to build a passive solar heater for my green house,made panels from sliding glass doors,where does pump g
have a water tank,500 gal.s in ground,pump goes where,what side.

Best answer:

Answer by TitoBob
From tank to pump, from pump to solar panels, from panels to radiators in greenhouse, from radiators back to the tank. If you can rig slow-speed fans to blow air past the radiators, it will increase their efficiency.

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