Hail damage is probably one of the biggest issues faced by any residential roofing contractor. Hail that’s big enough to make a sizeable impact on your roof will cause damage and cause leaks. But how can you prevent this?
This is why impact resistance ratings exist. This classification system is designed to help homeowners, property owners, insurance companies and contractors identify which materials can withstand higher impacts. This can be especially helpful in regions that suffer from a high incidence of hail.
The testing method used to identify impact resistance is simple. A steel ball is dropped from a given height and any observable damage is recorded. This testing method includes, a rating from one to four, ranging how damaged the shingle gets. Class one shingles are not very impact resistant at all, while Class four shingles can withstand impacts from steel balls that are 2” in diameter.
These shingles are materials with a fairly low impact resistance, hence the rating. These shingles are made of standard materials that can protect your roof from general issues, but not from heavy hail. This makes these shingles a good residential roof installation choice for regions that don’t experience much heavy impact hail, but if you live in a region that gets affected by heavy hail, then you may want to reconsider shingles that are in these categories.
It should be noted that the shingles in the Class three category are a step away from the toughest shingles available today, which means that they are in no way substandard in terms of impact resistance. However, they will most likely get damaged by heavier ice showers, so install them with caution.
Class Four and Beyond
Shingles with Class four impact ratings are some of the toughest shingles in the industry. These materials can definitely withstand a 2” steel ball dropped from a height of 20 feet and will most likely be a good choice for residents in hailstorm regions. These materials include aluminum and copper roofs, as well as slate. These materials are the toughest basic roofing materials currently available.
Since roofing technology is continuously evolving, materials such as modified asphalt roofing tiles have also become a Class four choice. While the base material used in these shingles are not impact-resistant, the modifications have made them as tough as other traditional Class four shingles.
Manufacturers like CertainTeed are in the process of developing tougher materials that could withstand bigger impacts from bigger projectiles. Once developed, these tougher shingles will be viable options not just for residential roofing, but for commercial roof construction as well.
At The Roofing Store LLC, we carry tough shingles from CertainTeed that have some of the highest impact ratings in the industry. We’d love to tell you more about them and about our other roofing services as well. You may find out more about these by calling us at (860) 564-8300, or fill out our contact form. We serve residents in Hartford County, CT.