There may be stains that are caused by mold and mildew.
Cleaning mold off aluminum siding.
If mold or mildew is the culprit spraying with a bleach solution will remove it.
Choose your cleaning solution.
To clean aluminum siding having mildew use a solution of one part bleach and four parts water.
While a pressure washer is a fast way to remove dirt it is not recommended for use on all siding types or for a light cleaning.
When mildew gains a foothold homeowners often turn to diluted chlorine bleach sodium hypochlorite a k a.
Spray this mixture on remaining spots.
Cleaning aluminum siding mildew.
The main types of siding are aluminum wood brick stucco and the most popular siding vinyl.
Remove the mold as soon as you notice it to prevent it from spreading and keep in mind that removing mold from aluminum siding may require more.
Scrub with moderate pressure being careful not to push too hard against the flexible vinyl which can break using a scrub brush on the end of a long pole will help you avoid the need to climb to the top of the ladder to.
Your standard household whitener it appears to make mildew vanish but on porous surfaces such as wood or vinyl siding chlorine evaporates too quickly to get to the fungi s roots guaranteeing regrowth.