The Relative Impact Resistance of Asphalt Shingles

Asphalt shingle roofing is currently the most popular roofing option used in residential properties in the U.S. Each asphalt shingle is made of a felt or fiberglass base, and a layer of resin and asphalt for a top surface. This roofing option is affordable and energy-efficient, but how durable is it compared to other options you can get from a local roofing contractor like us?

the relative impact resistance of asphalt shingles

Testing Damage via UL 2218

Although impact damage can be caused by many factors, most roofing manufacturers use UL 2218 impact test as the basis for setting the standards of what is an acceptable level of durability. To simulate the impact of hailstones, four differently-sized steel balls are dropped on the material’s surface. After the balls are dropped, the material is rated according to the largest ball that it was able to resist without taking damage.

How Asphalt Shingles Fared

Asphalt shingles are available in different varieties, which mean they also fared differently under testing conditions. For example, while low-end three-tab shingles are likely to get damaged by class 1 (1.25-inch diameter ball) impacts, a high-end polymer modified impact resistant shingle can withstand class 3 (1.75-inch diameter ball) impacts. This means roof repair services are more important when using low-end asphalt shingles, especially after a recent hailstorm.

Getting for What You Paid

As numerous impact tests have shown, high-end impact-resistant shingles are more durable than their low-end counterparts. However, this performance comes at a premium cost per square. Choosing the right type of shingle for your roof given your budget and the likelihood of having hailstorms in your area is like a balancing act. However, always keep in mind that you will get for what you pay.

Compared to Other Materials

By looking at the results, experts were able to give high-end shingles at least a class 3 impact rating. To put things in perspective, clay tile roof and metal roof installation can have an impact rating of class 3 or 4. This helps dispel a common myth that all asphalt shingle options are not durable options. It is very important to make sure that you’re picking an option that actually has a certified class 3 or class 4 impact rating to make sure your roof will actually withstand moderate hailstorms.

Get durable roofing options from the best in the area. The Roofing Company is THE go-to roofing experts in Granby and other areas in Colorado. Call us at (970) 887-0104, or fill out the contact form to request a free estimate.