I take a bucket, soap, brush on extension, and hose with sprayer up on the roof. I do it in 10 foot sections, starting with roof and to top of the sides. Wash and rinse a section at a time. Then I start from the ground, same thing. Small sections, from top to bottom. Takes about 2 hours on a nice morning. Spring and fall. Ots about that time again for me come to think of it.
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