I think this is an aluminum roof... I can confirm tomorrow if needed...
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My question is in regards to how to PW it. Would any one use a surface cleaner or just a wand? What tip is recommended for a wand? What Pressure is recommended for a surface cleaner? if a surface cleaner then what size? I am thinking a small 12" ????
How would a professional PW'er do this roof?
It does have moss and I was planning the bleach wash with the exterior siding when/if I paint the house...
Another thing too... on a metal roof would it be ok to treat it with Moss Be Ware or some other moss killer? Most moss killers for roofs have Zinc sulfate and was wondering if that would react to the metal roof? The roofing seems to have been painted before install (colored). I do mix Aluminum Sulfate with the purchased zinc sulfate to give a longer life to the application.

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My question is in regards to how to PW it. Would any one use a surface cleaner or just a wand? What tip is recommended for a wand? What Pressure is recommended for a surface cleaner? if a surface cleaner then what size? I am thinking a small 12" ????
How would a professional PW'er do this roof?
It does have moss and I was planning the bleach wash with the exterior siding when/if I paint the house...
Another thing too... on a metal roof would it be ok to treat it with Moss Be Ware or some other moss killer? Most moss killers for roofs have Zinc sulfate and was wondering if that would react to the metal roof? The roofing seems to have been painted before install (colored). I do mix Aluminum Sulfate with the purchased zinc sulfate to give a longer life to the application.