Hail And Storm Damage Experiment - What Does Hail Do To My Roof? | Northface Construction
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Hail and Storm Damage Experiment – What Does Hail do to My Roof?

Posted by Northface Construction  - Owner & Founder

Today we wanted to put some shingles to the test. So we put together a fun experiment complete with pickles and slingshots to see what shingles can withstand when it comes to “hail” aka chunks of ice at a high rate of speed. Enjoy this video we made that is sure to help you gain a great understanding of hail and storm damage.


Today we are in the shop equipped with a slingshot, frozen water balloons, and some roofing samples. Today we are testing some asphalt shingles and some textured metal shingles. We’ve got a freezer full of frozen water balloons, so let’s see what we can find out. In the name of science, what is life without having some fun?

We wanted to see how these asphalt and metal shingles would hold up when ice was being shot at them via my slingshot. It’s as close as we can get to simulating hail hitting your roof.

hail damage

The textured granules on your asphalt shingles act as the initial protective layer for your roof. The second these get knocked off, the less protection you have. Damaged or lost granules will lead to faster deterioration, and open your roof up to potential damage.

We first tried some small hail balls, which are a decent size and can still cause some damage. During a storm, these small hail balls will travel down at about 9-25 mile per hour, which is fast but not too bad.

Golf ball-sized hail is over an inch in size and will hit your roof at a rate of 25-40 miles per hour during a storm. These displayed much more damage than the smaller ones. Keep in mind, that wind-driven hail can get up to speeds of 50, 60, and even 75 miles per hour. That can definitely break a window, dent your roof, and cause some pretty severe damage.

Next, we tested our metal shingles. Metal roofing has many benefits such as strength and durability, low maintenance, long lifespan, fire-resistant, lightweight, and energy-efficient. Their one downfall however is its ability to dent when hit by hail or debris. So we put it to the test to truly see what kind of dents we can expect from hail.

metal roofing dent

It’s hard to tell from this picture, and to see the dent amongst it’s textured grooves, but the hail did dent the metal shingle. The thing is, even if it had a dent, it wouldn’t necessarily compromise its integrity. We are also lucky that these shingles in particular have a design that hides imperfections pretty well. However, if you have smooth metal shingles, from a cosmetic standpoint, you will have more unsightly damage if it dents. You can often get that covered and replaced through your warranty or insurance.

We know that hail is not the only hazard that can come with a severe storm that can cause damage to your roof. High winds can blow debris, branches, and even detach shingles—all of which can leave dents and damage to your roof. Even a small shingle blowing off can fly over and damage another part of your roof. The same goes for a branch breaking off and scraping or gouging your shingles.

We did a test using a big branch we found and we chucked it as hard as we could at our roofing samples and the branch left a gaping hole in the asphalt shingles. When we threw it at the metal shingles it left a decent-sized dent. Both of these damages is potentially functional damage done, which definitely ruins the integrity and functionality of your roof and must be repaired. Cosmetic damage is not as urgent to repair.

Last but not least, and just for fun, we decided to see what a gigantic jar of pickles could do. The jar shattered, but no pickles were harmed. They taste just as amazing.

So as you can see, even in our mediocre, very non-controlled environment experiment, large chunks of ice can cause both cosmetic and functional damage quite easily.

If you find yourself facing any sort of storm damage to your home, siding, or roof, give us a call for a FREE inspection and damage assessment. We do our very best to do storm estimates same day, otherwise, you can expect it the very next day.

Call Northface Construction at (763) 710-2933 for all your storm damage needs. We’ve got you covered!


One response to “Hail and Storm Damage Experiment – What Does Hail do to My Roof?”

  1. Thanks for writing a detailed article mentioning the hail and storm damage experiment, identifying storm damage is a big challenge but after reading your article it seems so easy. Well written!

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