Black Spots On Vinyl Siding

These spots are often caused by spiders especially true when you re near water.

Black spots on vinyl siding.

Black spots on siding. But testing is probably not justified. It may look unsightly but it s not harmful. How to clean spots on vinyl siding general cleaning tips.

Thankfully regular maintenance of your vinyl siding is fairly straightforward and simple. And of course the black spots show up better on white surfaces so they are noticed more easily. A microscopy lab examination of a sample from this surface would be needed to know for sure. The artillery fungus shoots its black sticky spore mass which can be windblown as high as the second story of a house.

Use these simple landscaping tips to prevent this from happening. In nature the artillery fungus shoots its spores towards sunlight. 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. You basically have to stay on top of it remove any tree branches that are up against it make sure your waterspouts or gutters aren t keeping it wet a lot and ask at the hardware if there is anything you can apply to slow down growth.

Over time and through repeated changes in weather vinyl siding will attract and develop mold or. Bleach works but if the house is in a generally damp area and the siding is facing north the mold fungus will just come back. They may be a problem. 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.

Bet your boat will have spots too if you have one. John shows you images o. If you re seeing dark specks on your siding the culprit could be hiding in your mulch. By the growth pattern we think this is almost certainly a dark colored algae.

Removing spots from vinyl siding. The black stains on the vinyl siding shown at left may be a fungus or a black agae.