I have the same exact issue at my own home although its siding is fiber cement.
Black mold on vinyl siding.
Over time mold can grow on a vinyl siding because it has not been cleaned for a while.
As sturdy as vinyl siding is it s not resistant to pesty mold and mildew.
Dark green and brown stains on your vinyl siding can be very unattractive.
Mold removal usually requires some scrubbing and the best tool to use is a stiff bristle natural fiber scrub brush avoid metal fiber brushes they can damage the siding.
These stains are primarily caused by mold and mildew.
Mold and mildew on vinyl siding is a common problem that can be remedied with some effort and the right cleaning materials.
Window headers are another area where water and mold spores can enter your siding.
For a stronger solution mix together one third cup powdered laundry.
How mold gets under siding.
70 water 30 white vinegar makes a great all purpose vinyl siding cleaner that removes light mold and mildew stains.
Luckily it s easy to prevent mold on vinyl siding with just a few simple preventative measures.
Accumulated dirt grime grease and plant material can also provide the perfect breeding ground for mold.
The black tar like spots that are all over your vinyl siding are more than likely a fungus called sphaerobolus stellatus better known as artillery or shotgun fungus although it s most often found on the east coast it can grow anywhere and especially thrives in areas that have cool damp springs or rainy fall weather conditions.
Removing mildew from vinyl siding.
Vinyl siding is a popular addition to the exterior of homes because it s known for being durable and affordable.
For example cracks or tears in the butt joints are the perfect entryway for all types of fungi along with critters looking for a warm place to stay.
Why does mildew grow on vinyl siding.
But there is a downside to this material and it s that mold and mildew tend to grow on vinyl siding.
You may have black mold and mildew or green algae growing on the north side of your home if you live north of.
There are a number of ways mold spores along with moisture can seep under your siding.
Standard household cleaners won t necessarily remove.
How to remove mold and mildew stains from vinyl siding.
In order to keep your beautiful vinyl siding in tip top shape there is a bit of upkeep involved.
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.