Green and black algae are not only ugly to look at, but it also is a threat to the roof shingles of your house. As algae feeds and spreads it deteriorates the shingle granules reducing the effectiveness of the shingle. Coastal houses, more so than inland homes, are very vulnerable to roof damage due to salt air and wind off the ocean.
Fungus On Roof
Commonly called fungus, algae create unsightly dark brown, green or black streaking on shingles. Sometimes these streaks are mistaken for soot, dirt, moss or tree droppings. While regions with sustained humidity and moisture tend to be most at risk, people who live in all parts of the nation with roofs made from all sorts of materials are susceptible to moss and algae accumulation. In fact, all algae need to survive and thrive are air, water and a food source.
Cleaning and Replacement
There are products available that will allow you to clean your roof. If you choose to clean your roof, don't use bleach. Rather try a more environmentally friendly cleaner that is won't kill your plants and damage the environment. Also, never pressure wash your roof. Pressure washing washes away the granules that protect the shingle from wear. You can also buy high quality shingles that have a algae-resistant barrier built-in. The algae-resistant barrier protects the shingles from streaks caused by algae. CertainTeed produces an asphalt shingle with an algae-resistant Streak-Fighter feature in the shingle.
In Closing
Regularly check your roof. When you see streaks starting to develop, it's time to get the roof cleaned by you or a roofing professional. When it becomes time to replace your roof, consider having a shingle with a algae protection feature in the shingle.
Fungus On Roof
Commonly called fungus, algae create unsightly dark brown, green or black streaking on shingles. Sometimes these streaks are mistaken for soot, dirt, moss or tree droppings. While regions with sustained humidity and moisture tend to be most at risk, people who live in all parts of the nation with roofs made from all sorts of materials are susceptible to moss and algae accumulation. In fact, all algae need to survive and thrive are air, water and a food source.
Cleaning and Replacement
There are products available that will allow you to clean your roof. If you choose to clean your roof, don't use bleach. Rather try a more environmentally friendly cleaner that is won't kill your plants and damage the environment. Also, never pressure wash your roof. Pressure washing washes away the granules that protect the shingle from wear. You can also buy high quality shingles that have a algae-resistant barrier built-in. The algae-resistant barrier protects the shingles from streaks caused by algae. CertainTeed produces an asphalt shingle with an algae-resistant Streak-Fighter feature in the shingle.
In Closing
Regularly check your roof. When you see streaks starting to develop, it's time to get the roof cleaned by you or a roofing professional. When it becomes time to replace your roof, consider having a shingle with a algae protection feature in the shingle.
About the Author:
Hubert Miles is the founder of Waterfront Houses USA, an internet listing service that provides Coastal Houses and Coast House in the US and Canada.
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