Hail Resistant Roof Classes

Hail resistant is not hail proof.

Hail resistant roof classes.

Now here s where it can get a little confusing. One of them is for impact resistance one is for wind resistance and the other one is for fire resistance. It s important to remember that no roof is 100 immune to the damaging effects of an intense storm or some other catastrophic event. For instance if you ve recently installed a class 4 hail impact resistant shingle on your home and your roof was impacted by 2 1 2 hail stones there is a chance that your roof sustained no functional damage.

The ul 2218 is the roofing industry standard for testing shingles against hail impact. You need a roofing shingle that has been lab tested by the roofing manufacturer and is proven to withstand hail and provide reliability in your building envelope. These steel balls are dropped at heights between 12 and 20 feet to mimic the impact of hail falling at high speeds. This is why you need northgate.

However if your roof is made up of a 10 year old class 4 shingle it probably did sustained damage. Summarizing the result we would be looking at for a class 3 roof is earned if the sample does not crack when hit twice in the same spot by a 1 75 inch diameter steel ball. To have a truly hail resistant metal panel a design must combine all of these factors to create a layer of protection. The most effective way to minimize hail damage is to choose durable hail resistant roofing materials.

A class 4 impact resistant shingle will provide these benefits and more including insurance discounts in some areas. Thicker steel protects better. Those with the least resistance earn a class 1 rating. After performing the test roofing manufacturers would be scored based on the resistance of the material getting a rating from 1 least hail resistant to 4 most hail resistant.

Note however a few caveats. If you re one of the millions of american homeowners who live in an area where intense storms frequently occur then your choice of roofing shingles plays a critical role in protecting your roof from storm damage. Impact resistant shingles and other roofing materials are designed to resist damage from hail and flying debris abuse that might damage ordinary shingles. The last factor is the method by which the panel bonds to its neighboring panels.

Shingles on an impact resistant roof are designed to withstand high winds and hail damage and have a class 4 rating see below. Class 4 impact resistant roofing shingles. When it comes to protecting a roof the thickness of the metal is a key factor to resisting large sized hail stones. Storms that bring hail airborne debris and high winds put your roof at risk for damage and installing impact resistant shingles may.

The roofing materials that show the greatest resistance earn a class 4 rating. There are four testing classes that use four different steel ball sizes that range from 1 1 4 to 2.