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