A chemical solution is necessary.
Algae cleaner for siding.
Green algae black mold and moss begin to die off on contact.
Best for stain removal.
Our top picks 1.
Always test any type of cleaner on a small section of siding to be sure it doesn t stain streak or otherwise damage the siding.
Wet and forget moss mold mildew algae stain remover this bleach free wet and forget formula.
Scotts outdoor cleaner plus.
Wet forget roof and siding cleaner for easy removal of mold mildew and algae stains bleach free formula 48 oz.
Krud kutter rust calcium and lime stain remover this non toxic bleach free indoor outdoor.
With an easy to use formula mold armor house wash will clean brick wood and vinyl siding without the need for scrubbing.
If this mixture doesn t remove all of the algae try a stronger solution using oxygen bleach.
A pressure washer will definitely give a better point in cleaning.
It can easily and effectively remove the stains that algae mildew mold and dirt can cause.
Wet and forget is as simple as spraying your outdoor surface and forgetting it.
On top of that you need a vinyl siding cleaner that fits with your pressure washer and does the cleaning with ease.
A good cleaner to try first is a mixture of 70 water and 30 white vinegar.
Hard stubborn mildew or algae is tough to remove with only pressure washing.