Black Spots Vinyl Siding

It s on the porch my windows but it is worse on the siding.

Black spots vinyl siding.

The siding has been on the houses for 12 years and now everyone is talking about the black spots so it s really a town issue lol but one we need to figure out. 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. Thankfully i only have one area that has plants next to it so the bleach solution wouldn t hurt them but not sure about my deck stains. The black stains on the vinyl siding shown at left may be a fungus or a black agae.

Artilliery fungus spore masses on vinyl siding. It goes all the way up to my second story windows and is even under my soffit and on my gutters. A pro services inc has competed with artillery fungus for several years. It seems to be an epidemic in some communities.

By the growth pattern we think this is almost certainly a dark colored algae. Small black spots on siding. You have the infamous artillery fungus. What are these black spots on your house siding.

But testing is probably not justified. 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. Because this organic material sticks to house siding and windows we are confronted with finding a means of removal because that what we do. We have these small black spots that look like specks of tar all over our white vinyl siding of our house.

How to clean spots on vinyl siding general cleaning tips. Use these simple landscaping tips to prevent this from happening. A microscopy lab examination of a sample from this surface would be needed to know for sure. If you re seeing dark specks on your siding the culprit could be hiding in your mulch.

It may look unsightly but it s not harmful. The artillery fungus is a white rotting wood decay fungus that likes to live on moist landscape mulch.