Remove the particles or pieces that are causing the rust stains.
How to clean a tin roof.
Never mix chemicals together.
Use a rag to apply to affected spots and use circular wiping motions.
Vinegar bleach ammonia and salt will all effectively change the ph level of your roof allowing you to clean it.
This is one of the most non invasive and easiest ways to get a metal roof clean.
Mix water and mild detergent for stubborn areas.
Turn the dial back to the water setting and rinse down landscaping.
Opt for something soft to protect your roof s paint and parts.
To remove algae and moss growth from the roof dissolve one cup of ammonia for every 5 gallons of water used and work from the top to the bottom.
Addressing stubborn spots 1.
To remove difficult algae spots use only a wet cloth sponge or low pressure washer.
Use a cloth or sponge to clean.
For any areas that don t wash away with pressurized water fill a.
To remove severe rust stains.
Turn the black dial to the off setting and you re done.
Finally thoroughly rinse off the solution with plain water.
Spray your roof down with wet forget.
Then you ll just need to apply to solution to your metal roof with a sponge microfiber cloth or soft bristle brush and let it sit on the surface for 5 10 minutes.
Spray the roof with the diluted substance and let it sit for about an hour.
Apply the product on a day without wind to get the full reach out of the hose end sprayer.
5 parts water 1 part diluted hydrochloric acid or citric acid or muriatic acid or oxalic acid or vinegar.