Black Streaks On House Siding

This algae growth usually begins as small spots and then eventually becomes visible streaks.

Black streaks on house siding.

Although these dark spots and ugly black streaks on your roof may look like dirt mildew soot or mold what they really are is algae. I agree with you guys in that these streaks are coming from the weep holes in the siding. It worked great and did a nice job of getting the dirt off the siding. 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.

After borrowing a power washer we tested it on the backside of the house with no problems. The simple answer is heat moisture and nutrition. It basically looks like dirty water drying on the siding. These are the cause.

We have a problem with our siding on front and back of our 2 story home. 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. You re outside taking care of some yard work and you suddenly notice streaking on your roof and siding. Use these simple landscaping tips to prevent this from happening.

Black brown or gray stains on roofing products due to debris left on the roof surface such as piles of leaves and. You ve never really taken a good look before but yes it s there. There are streaks all over that are darker than the the rest. The most common type is known as gloeocapsa magma also known as blue green algae.

What causes black streaks on roof. I e not entire house. When we did the same to the front of the house we noticed later in the day that it looks as if someone did graffiti all over. Black or other colored stains on roof surfaces may be caused by soot from chimneys both wood fired and oil fired.

The green stuff on siding is abundant in the south. Green stuff on siding. It is occuring on first floor only same area in front as in back.