Pine sap decaying leaves and even road dirt that s drifted into the air can settle on your metal roof and stain it.
How to clean a metal roof from the ground.
For every part water combine 0 05 part mild dish or laundry detergent.
Tsp is available in most paint or home improvement stores.
Mix water and mild detergent for stubborn areas.
Opt for something soft to protect your roof s paint and parts.
Use a rag to apply to affected spots and use circular wiping motions.
Use a cloth or sponge to clean.
Cleaning a metal roof.
To remove severe rust stains.
Mix 1 2 cup of tri sodium phosphate tsp in a gallon of water in a bucket.
Remove the particles or pieces that are causing the rust stains.
Spray this mixture onto the roof and agitate it with a soft bristled brush to get it clean.
For any areas that don t wash away with pressurized water fill a bucket or other container with water.
5 parts water 1 part diluted hydrochloric acid or citric acid or muriatic acid or oxalic acid or vinegar.
Clean the mold and mildew.