5 parts water 1 part diluted hydrochloric acid or citric acid or muriatic acid or oxalic acid or vinegar.
How to clean a tin roof.
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.
Mix water and mild detergent for stubborn areas.
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.
To remove severe rust stains.
Wet forget works with the rain and wind to get it clean.
This is one of the most non invasive and easiest ways to get a metal roof clean.
Use only one of these substances mixed with water at a time.
Scrub problem areas with your.
Spray your roof down with wet forget.
Remove the particles or pieces that are causing the rust stains.
Turn the dial back to the water setting and rinse down landscaping.
Use a rag to apply to affected spots and use circular wiping motions.
To remove difficult algae spots use only a wet cloth sponge or low pressure washer.
Spray the roof with the diluted substance and let it sit for about an hour.
Use a cloth or sponge to clean.
Turn the black dial to the off setting and you re done.
Addressing stubborn spots 1.
Opt for something soft to protect your roof s paint and parts.
Vinegar bleach ammonia and salt will all effectively change the ph level of your roof allowing you to clean it.
Finally thoroughly rinse off the solution with plain water.