Ideal for removing moss, mold, mildew, or lichen from asphalt, tile, rubber, concrete, or metal roofs, and stucco siding.
For wood shingles use Oxy All Wood Wash.
Add 125 ml of Oxy All Roof Wash (1/2 cup or 3 capfuls per gallon) to 4 L of water. If available, warm water dissolves best. Mix well, stirring frequently, then allow solution to fully activate for 15 minutes before use. To clean without rinsing, spray on with a garden style hand pump sprayer, and leave it to mother nature to wash off the debris. Damage is stopped, but it may take 60 days or more to come fully clean. In some extreme cases a second application may be required. For an immediate clean roof, apply to small enough sections that can be kept wet, scrub with a stiff brush, then rinse with a hose. For a professional type cleaning, spray the roof completely then rinse with a pressure washer set at less than 1000 psi (soft enough that you can put your hand in front of the nozzle).
Avoid letting overspray dry on glass as it leaves a difficult to clean residue.
Active ingredient: hydrogen peroxide
850 g will clean 60 0 –90 0 sq. ft.
4.5 kg will clean 3,0 0 0 –4,0 0 0 sq. ft.
18 kg will clean 12,0 0 0 –16,0 0 0 sq. ft.