San Antonio Roofing: Article About Asphalt Shingles
The sight of black streaks darkening the asphalt shingle rooftop may be frustrating to any homeowner. This unattractive mess is the result of proliferating roof algae. While this organism might sound like it belongs in the ocean, it thrives anywhere there is a surface for it to grow on, moisture to absorb and sunlight for photosynthesis. Homeowners who want to be rid of the algae for good can work with an experienced San Antonio roofing service to install algae resistant shingles.
While this algae doesn't harm the roof, most people find the dull streaks to be unattractive and visually distracting. Passersby may even suspect the roof is failing due to its darkness. To rid their shingles of the black stains, many property owners take to using cleaning solutions, power washers or scrub brushes. All of these harsh chemicals can harm the roof or result in leaks. Algae resistant shingles stop the stains by preventing the algae from growing.
These specialty shingles are impregnated with copper on the surface of the granules. These molecules of copper do not change the shingles' appearance in any way. Instead, they function to interfere with the algae's ability to land on the roof's surface and grow colonies. Algae will not be able to grow anywhere on the roof's surface due to the presence of copper.
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Each time it rains or moisture condenses out of the air and forms droplets on the rooftop, the copper is activated. The copper is not dangerous to wildlife and will not cause health problems to homeowners. Homeowners should not worry if a few copper granules make their way into the gutters and downspouts. Even though copper is a metallic, electrical charge or static will not build up on the roof.
These shingles are available in all of the usual styles, such as square and random tab. They also come in a variety of colors, ranging from light brown to red, green, gray, blue and black. The installation process is no different from that of traditional asphalt shingles. These shingles last as long as the type that does not have added copper.
Although algae resistant shingles cost a little more upfront compared to regular asphalt shingles, the investment may be worthwhile, as the homeowner will not have to spend money and time trying to get dark stains off the home's roof. If the owner decides to list the home for sale, a roof without stains will offer a higher level of curb appeal and may boost the home's sale price.