Why Do Roof Shingles Have Granules

Shingle granule loss defects occur on organic mat or fiberglass mat asphalt roof shingles and depending on the cause and extent of mineral granule loss the loosening of this protective coating can spell the end of life of an asphalt shingle roof or the demise of a mineral granule coated roll roofing roof.

Why do roof shingles have granules.

An asphalt shingle roof is a valuable part of your home. Is it normal for a new shingle roof to lose granules. Why do roof shingles have granules. Newly installed shingle granule loss.

Mineral granules were added to the design of shingles because they help protect your roof from excessive sun exposure which can eventually lead to damage and hasten the need for a roof replacement. Some other aging clues are curling at shingle corners lack of tab adhesion and broken off pieces as the shingles get more brittle with age. Monday december 31 2018 you can expect some granules to appear around the discharge of gutter downspouts or along the along the drip edge line on the ground where there are no gutters after the first couple of rains when your roof is new. It shields you your family and your possessions from the elements.

This is due in part to the installation process where handling and walking on the shingles dislodges granules from the asphalt. If you re not seeing many granules at all on the shingles it may be a good idea to give noland s roofing a call. New roof shedding granules it is normal for a new roof to have some level of granule loss. The algae feed on the limestone in shingles.

Because granule loss is one of the signs that a roof is getting older it is used by inspectors as a gauge of roof condition and a way to estimate additional roof life. But many homeowners don t know much about shingles and in fact very few homeowners ever touch or handle an asphalt shingle in many ways shingles are a bit of a mystery material. Two types of base materials are used to make asphalt shingles organic and fiberglass both are made in a similar manner with an asphalt saturated base covered on one or both sides with asphalt or modified asphalt the exposed surface impregnated with slate schist quartz vitrified brick stone or ceramic granules and the under side treated with sand talc or mica to prevent shingles from. The algae will worsen and become more noticeable each year trapping moisture and causing premature shingle aging and granule loss.

The granules are what keep the roof weather proofed and without them your shingles are no match for the elements. If you don t like the streaks reshingle with algae resistant shingles. Contact an experienced and certified roofing technician to inspect your roof and perform the appropriate repairs.