If you’ve ever seen asphalt roof shingles up close, you may notice that they’re coated with a series of granules. Over time, these granules can come loose, appearing in your gutters and drain spouts. When this happens, take note. Granules serve several critical purposes, and if shingles are deteriorating, it may be time for repairs to keep your roof functional.

Why You Need Granules on Roof Shingles

1. Inhibits Algae Growth

While granules were first developed in the early 1900s, it wasn’t until the 1970s that manufacturers developed an algae-resistant coating. Exposure to the elements, including rain and snow, can invite algae growth that causes dark streaks on shingles. Special granules, including those made from copper, keep the growth at bay and your roof looking new.

2. Protects Against Ultraviolet Rays

Asphalt shingles are continuously exposed to direct sunlight. UV sun radiation can penetrate shingles down to their chemical compounds, breaking them down as oxygen mixes with the material’s hydrocarbons. Granules add an extra layer of defense, preventing the shingles from deteriorating.

3. Increases Durability

The original purpose of granules was to enhance durability. Granules made from ceramic can extend the lifespan of your shingles, adding additional protection against wind, moisture, and other elements. While some shingles have 20-year warranties, top-of-the-line models may last as long as 50 years.

4. Improves Installation

Granules provide added texture, giving shingles grit. This prevents them from sticking together and getting stuck in packaging, making the installation process easier. The extra texture also provides a grip that helps minimize the risks of accidents and slips for roofing contractors.

5. Enhances Aesthetics

Granules are available in a range of colors, preserving the aesthetic quality of the roof. No matter the style of your home, there’s likely a complementary roof color to match. Since they also protect against UV rays, they prevent premature fading, keeping your roof looking its best for years.

If your roof shingles need to be replaced, turn to 1st American Roofing. Located in Boulder County, CO, this trusted contractor has more than three decades of experience. In addition to superior craftsmanship, they offer industry-leading products, including Atlas®, and Malarkey® Impact Resistant shingles. Find out more about their residential services online, or request an estimate by calling (720) 203-2900.