The combination of the wind and the rain breakdown the growth and rinse your surfaces clean over time.
Galvanized roof cleaner.
As an oxygen based cleaner the product only has an active life of 4 6 short hours before this product biodegrades making it by far the safest product in the roof.
Redihan s roof wash ideal for roof cleaning and removing stains from moss mildew lichen or black algae on roofing shingles including asphalt metal tile wood shake rubber and new composite materials.
Look for a power washer with a psi of 1450 or below.
Roof cleaners like these also have the ability to clean multiple surfaces like concrete brick aluminum decking roofs and many more.
Safe effective.
It can also show it s magic on painted surfaces as well which is nice to have.
Wet and forget is as simple as spraying your outdoor surface and forgetting it.
Green stains clean up in 1 2 weeks black stains.
You can also use clr lime juice rust dissolver 10g or white vinegar as an alternative to ammonia to remove wet.
Green algae black mold and moss begin to die off on contact.
A low pressure power washer helps you clean large or tall sections of galvanized steel such as the siding or roof of a building.
Things you ll need water power washer or hose with spray nozzle or wand attachment mild detergent optional cloth or sponge optional extension ladder partner safety harness and line bolt strap anchor or ridge clamp.
This process is much more straightforward and faster than trying to hand clean a large surface area.
First of all it is a non caustic and non acidic roof cleaner which makes it one of the more convenient options for overall use.