Why Are There Black Marks On My Roof

Because of their location they re often an afterthought however roofs can quickly become unsightly or damaged if they are not checked regularly for problems.

Why are there black marks on my roof.

One issue that can lead to roof damage is black streaking caused by algae. I sprayed on a second application and the roof looks better every week. In about two weeks i noticed a significant improvement in the roof and a week or so later i would say 75 of the streaks were gone. There can be other sources of water seepage from your roof other than a leak.

Thanks for the site. The black streaks are also known as black algae or roof mold. The black streaks running down roofs are actually a hardy algae called gloeocapsa magma. For water stains coming from your roof you ll need to identify the nature of the disrepair.

Kevhead my black cat blanche has a black spot on the roof of her mouth and she s very very smart. Housetops are often left unnoticed. Everyone who meets her loves he immediately. That is until there is a problem.

Those that tend to be the most humid furthermore they will only appear on the north side of the roof. There were visible dark streaks that made me think i needed to replace my roof to improve the appearance of my house. Believe it or not those black streaks only appear on roofs in certain areas of the country. They are four months old and really smart.

Black marks became a problem about 20 years ago when manufacturers began adding limestone granules to add weight to material used to coat shingles. Roof algae can be unsightly but it s easy to get rid of and there are several methods you can do to keep those black streaks on your roof from coming back. The algae feed on the limestone in shingles. The spray and forget was used first with no results then tried the bleach tsp mixture i have done this exact to the instructions given and the stains are still there.

As the blue green algae accumulate they develop a dark hardened outer coating which results in the black stains you see. Roof experts tell our researchers that though other components are being added to shingles to hinder algae growth they still get calls to deal with black marks on relatively new roofs. My roof is steep and difficult to walk on. Here is a diagnostic guide to types of stains and staining materials found on roof surfaces black red green brown or other coloured stains on asphalt roof shingles or on other roofing materials need first an accurate diagnosis of the stain cause and then proper steps to remove the stain or to prevent future staining on roof shingles surfaces.

Technically the black streaks on roofs are a form of algae known as gloeocapsa magma. Both have black spots in the roof of their mouth. If the water stain occurs after a period of snow for example this can indicate the formation of an ice dam which requires upgrading your insulation not your roofing.