Why Would Grey Shingle Roof Look Striped With Stains

The most popular colors of roof shingles are shades of black brown gray and red.

Why would grey shingle roof look striped with stains.

The algae feed on the limestone in shingles. Roof shingle stains are often caused by black algae bleed through or extractive bleeding of asphalt dirt soot or organic debris. The most common type is known as gloeocapsa magma also known as blue green algae. Take a look at the attached photo of such a roof what a disaster.

Light spots on roof shingles dark colored asphalt shingles may appear lighter and patchy as they age. See roofing material defect environmentally caused roof shingle stains. The algae will worsen and become more noticeable each year trapping moisture and causing premature shingle aging and granule loss. See debris staining roof debris and.

This article series tells readers how to identify explain the most common causes of black brown red gray green or white stains appearing on roof shingles and on other building surfaces. Slate wood metal and clay. This algae growth usually begins as small spots and then eventually becomes visible streaks. Water stains if the discoloration seems to be damp check the attic or ceiling below the roof stain and investigate for a leak.

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. Of course some unscrupulous roofing contractors then realized that they could cut down on the good stuff and as long as the roof had a nice tint of orange or putty brown the two most common options available homeowners would consider their roof maintained. Such a roof can be reasonably expected to be some 50 to 60 degrees cooler than a dark color asphalt shingles roof. Now here s the blending principle.

A solid black roof on a home with dark brown wood siding creates a boring combination. If you don t like the streaks reshingle with algae resistant shingles. White and white shingles are perhaps the most versatile shade to work with when you re deciding what color roofing shingles or materials you want. 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.

Look in the gutters for signs of asphalt granules that have washed off and expect to need a replacement. It is best to choose a light color metal such as white light bronze beige peach light green or blue if you live in a region that has a lot of sun and a hotter climate. Today variations of black brown gray and red roof colors are available in a variety of different roofing materials. You could really do practically any color roof from black to gray to brown blue green or go for a monochromatic look with a white roof.