Anchorage, Alaska

What is Shingle Granulation? February 12, 2019

Anchorage, Anchorage County
What is Shingle Granulation?, Anchorage, Alaska

As homeowners, it’s necessary to inspect your roof seasonally to ensure that the shingles are in good condition. If your roof is made out of asphalt, it’s essential to understand the granulation process so you can watch for it. Here is a beginner’s guide to understanding granulation to provide proper care for your home.

Shingle Granulation 101

What Is Granulation?

Have you ever cleaned the gutters and found little pebbles mixed among the leaves and twigs? These are likely pieces of the shingles that have separated. Granulation occurs over time as roofing materials like organic-mat or fiberglass-mat asphalt come apart. Normal wear like weathering or trauma from hail or high winds can cause this deterioration. Additionally, extremely high temperatures or manufacturing defects can cause blistering that creates granulation.

How Can I Tell If My Roof Is Experiencing Granulation?

shinglesAlong with finding pieces of the shingles near the base of the home or in the gutters, you may notice that the roof is balding. If you spot the woven mat materials that usually hold asphalt together, it’s time to call a roofer to install new shingles to ensure that your roof is still waterproof and structurally sound.

How Can I Prevent It?

Granulation is usually an issue that occurs as shingles age, but occasionally it happens if roofing materials are improperly stored before installation. Make sure to hire reliable roofing crews with ample experience as they’ll know how to care for the shingles. They’ll also know where to walk and how to step to prevent contributing to this decline.

Additionally, by getting annual roofing inspections, you’ll be able to diagnose granulation right away and immediately repair areas that need attention to keep your home in top shape.


Homeowners in need of roofing services to address failing shingles should contact Action Roofing Services in Anchorage, AK, to set up an appointment. Their team has over 35 years of experience catering to the unique needs of Alaskan homes and are ready to perform roof repairs, installations and reroofing. Call (907) 677-6969 to set up an estimate or visit the website for information on their section or side repairs to ensure your home and family are protected.

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