What causes Granule loss in Asphalt Shingles?

by / Thursday, 30 November 2017 / Published in Tips

Asphalt shingles are comprised of small particles known as granules. These granules help to reflect sunlight away from your roof, thereby protecting against any potential sun damage. Furthermore, they also help to improve insulation levels which in turn benefit the homeowner by saving energy. Over time, the climate will take its toll on these small granules by breaking them down and washing them away.

As the number of granules decrease over the years, the risk of damage and leaking increases. However, costly damages can be avoided by having a roof repairs specialist in Napa do regularly scheduled preventative maintenance on your roof. Not only will this help to prevent unnecessary repair costs in the future, it could add years to the life of your roof in the process.

There are a number of factors that can contribute to granule loss. Although the loss of shingle granules over time is a common occurrence, it should not be so significant that it threatens the lifespan of your roof overall. Even the newest of roofs lose some shingle granules, especially when it rains. Some other causes of granule loss include:

Defective roofing products – premature bald patches are a primary indicator of a defective asphalt shingle. These will either be uniformly distributed when replacing an entire roof or in smaller areas where the defective product was used to make repairs. Call a roof repairs specialist inNapa, if you notice this.

Hail damage – severe weather takes its toll on any roof, especially when it’s hailstorms. In addition to losing granules, hail causes pitting. The combination of granule loss and pitting can significantly reduce the lifespan of your roof.

Normal wear and tear – as was mentioned above, granule loss causes by wear and tear is not uncommon. Just as the aging process affects our bodies, the same is true where the roof on your home is concerned.

Old asphalt shingles – age will always take its toll on any roof whether it’s covered with asphalt shingles or other materials. Older roofs develop “bald” spots over time.

Shingle blistering – pimple-like protrusions that are oftentimes cosmetic manufacturing defects. This eventually becomes the first spot that shows signs of wear and a reason to contact a roof repairs specialist in Napa.

Walking on your roof – no matter what precautions you take, if you walk on an asphalt shingle roof, you’re going to dislodge some granules. If your roof is subjected to a lot of foot traffic (e.g. during chimney repairs), bald areas will develop quickly. That is why it is important to let professionals handle the key aspects of roofing repair. It is important that you work with a licensed and insured roofing contractor.

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