Why Dp Asphalt Shingle On Roof Look Dirty

3 tab roof shingles create the typical rectangular shingle look you see when driving by homes.

Why dp asphalt shingle on roof look dirty. When comparing these products look for the highest numbers in solar reflectance and thermal emittance both on a. 3 tab roof shingles are one of the most commonly used shingle styles in north america. The shingles on your roof serve a dual purpose. 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.

Roof shingles are not lying flat. The most common type is known as gloeocapsa magma also known as blue green algae. To clean asphalt shingles start by filling a garden sprayer with your chosen cleaning solution such as roof shampoo. Cool roof asphalt shingles help lower that difference to just 5 or 10 degrees by using granules coated with a highly reflective pigment.

But there are other roof stain colors and causes. When you hear the term asphalt shingles many times we are talking about standard 3 tab roofing shingles. This algae growth usually begins as small spots and then eventually becomes visible streaks. Others have been tested by the cool roof rating council.

This leads to quicker aging of your house. The suburban skyline roof. Though often attributed to an accumulation of dirt defective shingles mold or mildew the most common culprit is actually a blue green algae known as gloeocapsa magma that is spread by airborne spores. Some shingles are energystar rated.

When your roof absorbs a lot of heat from the sun the asphalt becomes stiff and starts losing granules. Solar heat also ages traditional asphalt shingles and negatively impacts your roof. In many cases algae resistant granules are included to help inhibit the growth of blue green algae which causes unattractive black streaks and discoloration. They give the roof a finished look while forming a protective seal.

Then when you re on the roof spray the cleaner on the asphalt shingles and let it sit for 20 minutes before removing it with water from your hose. If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs. Dark black or brown roof shingle stains are often caused by black algae bleed through or extractive bleeding of asphalt dirt soot or organic debris. If you d rather make your own combine equal amounts of laundry bleach and water.

The remedies for and means of preventing stains on roof shingles are discussed as well.