Why Use Shingle Shield

Why Use Shingle Shield

The service life of a roof will vary according to roof type and climatic conditions. In general, a 30 year composition shingle roof will last 25 to 30 years in cooler climates and about 20 to 25 years in warmer climates.

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8 year old roof in Kissimmee, FL. Note the black streaks.

Algae is just starting on this 5 year old roof
located in Augusta, GA. Note the grayish discolorations starting down at the eaves.

Regardless of the region you live in, climatic conditions will allow moisture to be retained on all or at least on some portions of your roof. The life expectancy of your roof can be shortened considerably because of this condition which promotes the growth of destructive moss, fungus and algae. Sunlight obstructions such overhangs, trees or even a northern exposure only serve to increase the build-up of moss, fungus and algae.

Your roofs overall appearance can look inconsistent -- what appears to be "weathering" is very likely the green, white, or black patches of fungus or algae discoloring the roof's surface and breaking down it's components at the molecular level.

11 year old roof in Austin, TX

This roof is supposed to be white. The darker shingles are only 9 years old and the lighter shingles are only 4 years old. The roof is located in Edwardsville, KS.

Moss, fungus, and algae can penetrate wood or composition roof surfaces - weakening fibers, wearing off the protective granules or coatings, and promoting overall deterioration. If allowed to build up too heavily, moss, fungus, and algae can even lift the shingles.

This is that same roof in Edwardsville, KS. The right side has been cleaned with Shingle Shield Roof and Deck Cleaner and the left side hasn't. Both sides are the same age.

To order, call 1-800-323-7164.