The remedies for and means of preventing stains on roof shingles are discussed as well.
Why dp asphalt shingle on roof look dirty.
If you live in a humid area of the country you ve probably seen unsightly dark streaks on asphalt shingle roofs.
This algae growth usually begins as small spots and then eventually becomes visible streaks.
When comparing these products look for the highest numbers in solar reflectance and thermal emittance both on a.
Lumpy bumpy or curling shingles that do not.
This leads to quicker aging of your house.
If you d rather make your own combine equal amounts of laundry bleach and water.
3 tab roof shingles are one of the most commonly used shingle styles in north america.
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.
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.
But there are other roof stain colors and causes.
When your roof absorbs a lot of heat from the sun the asphalt becomes stiff and starts losing granules.
When you hear the term asphalt shingles many times we are talking about standard 3 tab roofing shingles.
3 tab roof shingles create the typical rectangular shingle look you see when driving by homes.
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.
They give the roof a finished look while forming a protective seal.
The suburban skyline roof.
Others have been tested by the cool roof rating council.
Solar heat also ages traditional asphalt shingles and negatively impacts your roof.
The most common type is known as gloeocapsa magma also known as blue green algae.
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.
Some shingles are energystar rated.
For instance a typical asphalt shingle roof lasts 20 to 25 years while a roof installed over an existing layer of shingles should be replaced after 20 years.
The shingles on your roof serve a dual purpose.
Roof shingles are not lying flat.
To clean asphalt shingles start by filling a garden sprayer with your chosen cleaning solution such as roof shampoo.