Dirty Roof Myth Busters No.4


“The black steaks and stains are only cosmetic and thus not a priority right now.” This is a myth.

If only I got a dollar for every time I heard that from homeowners. Nothing could be further from the truth. Gloeocapsa Magma more commonly known as “roof algae”, like all other living organisms, eats and multiplies. Its food source is the limestone material found in asphalt shingles and boy do they love to chew on shingles. The manufacturers add limestone to the asphalt shingles as weight filler.

The algae eating away your roof shingles results in premature loss of shingle granules and general deterioration.  Shingle granules are vital to your roof and home because they work to deflect ultraviolet rays and heat away from your roof surface.  If they are gone or covered with algae then you will have a hotter attic and higher AC bills.  You’ll also have to replace the roof a lot sooner.

By investing roughly $200 – $600 now to remedy your algae infested roof you will maximize your roof’s life expectancy and save thousands of dollars in the long run. With the average cost to replace a roof being $4,000 – $10,000 it’s really a no-brainer to keep your shingles clean and functional for a fraction of the cost. So be smart and make it a priority today.

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