Black Dots Vinyl Siding

The vinyl siding institute yes there really is such an organization offers some helpful and specific tips for dealing with stubborn moldy spots on your siding.

Black dots vinyl siding.

We have these small black spots that look like specks of tar all over our white vinyl siding of our house. We have these small black spots that look like specks of tar all over our white vinyl siding of our house. Don t be tempted to sand or use harsh cleaner because these will likely damage your siding. Others have said it s a fungus from mulch.

Shotgun fungus can shoot black spots on your house here s how to avoid the mess. It goes all the way up to my second story windows and is even under my soffit and on my gutters. It s on the porch my windows but it is worse on the siding. 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.

Algae may also look black or brown as may some molds. We have thousands of tiny black spots pin head size all over the siding of our house. It s on the porch my windows but it is worse on the siding. You have the infamous artillery fungus.

It goes all the way up to my second story windows and is even under my soffit and on my gutters. Small black spots on siding. The photo at above left shows green algae on vinyl siding. Some tell us it s from spiders.

The artillery fungus or shotgun fungus is a wood decay fungus that likes to live on moist landscape mulch. Because this organic material sticks to house siding and windows we. Artillery fungus scientific name. It seems to be an epidemic in some communities.

Store bought cleaners such as windex will usually do the job for these kinds of spots but if you want to make your own chemical free solution you can use a natural mixture of. If you have new vinyl siding that s still shiny and you know that the spores haven t been stuck on for more than a few days you might be able to power wash them off. Artillery fungus common name. Here is a photo of what the actual fungus that produces the black spores.

Here is what the spores look like on the vinyl siding. Click to enlarge any image small gray or darker round spots on siding that are about 1 16 in individual diameter particularly if the spots are slightly raised may be artillery fungus a mold spore.