Brown Stains On House Siding

I have black spots all over my vinyl siding thousands of them about the size of a ballpoint pen tip.

Brown stains on house siding.

Brown syrup like stains streaking down the siding on the exterior wall of the bathroom. Algae very often appears as a flat green coating or stain on building siding and even on sidewalks and concrete photo above. It seems they are only on the siding above my mulch beds. I thought it was bird droppings at first so i power washed it off.

Dirt from rain splash up algae lichens mold moss or even smoke or chemical stains have different causes and different preventative measures. Since then there haven t been any issues with the siding however a week ago i noticed a bunch of brown streaks stains on the east side of the house. For tough spots like paint drips tar and pencil and pen marks use a nonabrasive bathtub cleaner or nylon scrub pad. That might have been part of the problem.

Vinyl siding stain diagnosis. Vinyl siding may appear maintenance free but if you are the proud owner of a home with siding you have already learned that it simply isn t so. They are hard and when you pick them off they leave a small brown stain. Algae often causes black stains on roof surfaces and green stains on other building exterior surfaces such as concrete photo above left decks and building.

Distinguishing the type of stain found on siding is useful in deciding on the cause and thus the cure or prevention of staining. Will you perform an inspection for those stains only not a whole house inspection. Clean tough stains off with a nonabrasive cleaner or a homemade vinyl siding cleaner of soap and water that won t damage the surface of the vinyl. This article discusses common causes of stains or discoloration found on vinyl building siding.

Your siding is more than likely leaking there are many many ways your siding will leak. Vinyl siding requires care to keep it looking its best. Fast forward a week later and the stains have reappeared in the same spot. Also known as artillery or cannonball fungus sphaerobolus it uses internal water pressure to forcefully fire its spores similar to seeds up to 20 feet away the fungus sets its sights on bright areas so that means it will aim for any pale surface that reflects light such as the siding on your house.

It s hard to see shotgun fungus itself because it s only 2 millimeters wide. Otherwise the situation is exactly like what i see on 50s houses. Given that this one had mushrooms growing out from between the siding planks i told them to remove the siding in this area. We get brown water stains on our siding over the winter but they mostly go away over the summer.

It needs to be properly cleaned and stains removed to keep it from looking dirty and dingy.