Black Streaks On House Siding

They are layers of micro organisms.

Black streaks on house siding.

You ve never really taken a good look before but yes it s there. By the growth pattern we think this is almost certainly a dark colored algae. If black mold is suspected it should be inspected by a mold inspector who is certified. Danny one explanation for this is that a lot of times siding is pretty dirty when it gets on the house.

Artillery fungus is a wood dwelling fungus commonly found in mulch. Black mold can create dark spots on the surface of siding but often mold growth is not limited to surface areas. Stains and streaks can show up easily on roofing and siding over time thanks to a whole host of nuisances including mold mildew and plain ol dirt. You re outside taking care of some yard work and you suddenly notice streaking on your roof and siding.

The black stains on the vinyl siding shown at left may be a fungus or a black agae. Blacks streaks on roof we will start with black streaks on roof. Black stains on vinyl or painted building exterior wall siding may also be mold as our photo shows at above right. See debris staining and see proximate cause of roof shingle stains.

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. At first you won t see anything for a few years from the time your home or roof is new. Shotgun fungus can shoot black spots on your house here s how to avoid the mess if you re seeing dark specks on your siding the culprit could be hiding in your mulch.

Black brown or gray stains on roofing products due to debris left on the roof surface such as piles of leaves and organic waste from nearby trees. Contractors drop in the dirt laying on the ground it gets filthy on the backside. If you notice lots of tiny black or dark brown spots developing on your siding above a landscaped area of your yard as seen below it is most likely artillery otherwise known as shotgun fungus. The most common type is known as gloeocapsa magma also known as blue green algae.

If he is unable to detect mold inside your exterior wall but confirms that the dark spot is black mold the mold should be removed at once. But testing is probably not justified.