Unprotected, Your New Roof May Be At Risk
Wind-blown spores of the
blue-green algae Gloeocapsa can attach to your roof and form
a “colony.” They flourish in environments of moisture combined with
sunlight, and are most commonly found on the North-facing exposures of
your home and on the lower portion of roofs.
Rain helps spread and expand the colonies, which causes discoloration
and streaking on your roof. Since 40% of the visual appearance of the
average home is the roof, algae staining can significantly reduce the
re-sale value of your home. |
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Algae Damage Spreads Fast...
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New roof without Algae-Eater™ Protection
shows damage after just two years. |
After seven years, the damage has become
severe—as well as embarrassing! |
GAF’s Algae-Eater™ Shingles Are The Answer!
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In algae-prone areas, GAF offers
shingles with optional Algae-Eater™ protection. This includes the use of
specially-formulated shingle granules that kill the Gloeocapsa algae
that causes staining. The result: peace of mind for you—and your
neighbors! |
Not All Algae-Preventing Shingles Are The Same...
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The effectiveness of an
algae-preventing shingle
depends on the concentration
of algae-killing granules applied
by the manufacturer (see chart
at right). GAF uses a minimum concentration of 10% in its
Algae |
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