How to Detect Granule Loss from Asphalt Shingles

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The granules on asphalt shingles are what protect the shingles from weather elements and UV rays that can cause the roof to deteriorate. Granule loss leaves the shingles vulnerable to damage, and depending on the severity of the granule loss, you will need to replace the shingles or even get a full roof replacement. It’s common for shingles to lose some of their granules as the roof ages. However, a defective product, inadequate roof maintenance, and a severe weather event can also lead to granule loss. Here are some ways you can detect granule loss from TAMKO Building Products:

Check the rain gutters and downspouts

As granules become loose, they can get washed away with runoff. So, if your shingles are losing granules, you may find some granules at the bottom of the downspouts or in the gutters themselves. If you’ve found a modest amount of shingles in the rain gutters and downspouts, then call your roofing contractor for a professional roof inspection and repairs.

Please note that it’s common for a newly installed roof to lose some granules. During the manufacturing process, the granules are embedded into the asphalt. Some of the granules may connect with embedded granules but are not actually implanted in the shingles. Many of these excess granules fall off during packaging, shipping and installation, but some may remain intact and fall off following installation.

Examine the shingle surface

If you’ve found granules in your rain gutters and downspouts, then you want to examine the shingles themselves. You will be able to notice granule loss by looking at the shingles’ surfaces. If you have a multi-story home, use binoculars for a closer look at the shingles. While performing your inspection, also check for other signs of shingle damage, including buckling, curling, cracking, blistering, and loose and missing shingles. If you detect any of these signs, schedule a professional roof inspection.

 

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