Opt for something soft to protect your roof s paint and parts.
Homemade metal roof cleaner.
Lightly scrub the surface until the area is free of mildew or mold.
For roofs that have a heavy buildup of roof moss can you add some copper sulfate to the mix aprox.
Most of these substances can be removed by a mixture of cup tri sodium phosphate and 1 gallon of water.
While it s always good to check with the specific metal roofing manufacturer below is a simple home cleaning remedy useful for most metal roofs based on guidance from leading mra members.
For every part water combine 0 05 part mild dish or laundry detergent.
But when water alone won t cut it try mixing 1 4 cup detergent including mild laundry detergents car washing soap mild dish soap per gallon of water.
1 2 cup of rubbing alcohol.
If water alone isn t enough to remove common dirt and debris mix 1 4 cup detergent including mild laundry detergents car washing soap mild dish soap per gallon of water.
Spray this mixture onto the roof and agitate it with a soft bristled brush to get it clean.
Apply the solution to the roof surface using washcloth sponge a soft bristle brush and or non abrasive pad.
Mix water and mild detergent for stubborn areas.
For any areas that don t wash away with pressurized water fill a bucket or other container with water.
1 4 cup of lemon juice.
Spray the mirrors and windows and wipe clean.
2 tablespoons of cornstarch.
4 cups of warm water.
Dip a soft brush or rag in the cleanser and apply to affected areas.
Let stand for 5 to 10 minutes.
Rinse the surface well with plain water.
1 3 cup of powdered laundry detergent 1 quart of bleach 5 solution 3 quarts of water.
Use a cloth or sponge to clean.