You need a roof that is as storm-resistant as possible when you live in Indiana. Indiana is prone to severe thunderstorm development and also to hailstorms that can potentially cause extensive roof damage. In fact, during the years 2017-2019, homeowners in the state filed over 63,000 hail property damage claims, which is the ninth highest number of claims filed in any individual state during the time period.

Thankfully, you can choose a new roof that is resistant to storm damage, including hail damage, when you follow these four tips.

1. Consider These Impact-Resistant Roof Materials
A storm of any type can lead to impact damage on your roof. While debris and other small objects can become airborne and hit your roof during traditional thunderstorms, your roof can become damaged during a hailstorm when large hailstones hit your roof. In fact, a staggering 50 percent of all homeowners’ insurance claims are submitted due to home hail damage.

You can reduce the chance that your roof will become damaged during a hailstorm or when debris hits your roof during a thunderstorm by choosing an impact-resistant roof material.

All roof materials are rated for impact resistance with a scale that ranges from class 1 to class 4, with class 4 roof materials being the most impact resistant. Some roof materials are more inherently impact-resistant than others.

Just a few of your impact-resistant roof material options include:

  1. Impact-resistant asphalt shingles. Unlike traditional asphalt shingles, impact-resistant shingles are created by adding styrene-butadiene-styrene (SBS) to rubberize the asphalt
    formula used to create the shingles. Rubberized asphalt is more flexible than traditional asphalt, which increases impact resistance.
  2. Slate tile. Slate is a very strong stone that is a great impact-resistant roof material. Choose slate at least 5/8″ thick when designing your roof, since thinner slate can break more
    easily than thicker stone.
  3. Metal. Metal roofs are naturally impact-resistant, although galvanized steel metal roofs are less likely to dent when hit by debris than malleable metals like aluminum and

If you desire another roofing material, then choose one with a class 4 impact resistance rating to reduce the chance of storm impact damage.

2. Minimize Roof Overhangs
The high winds that accompany severe thunderstorms can damage a roof that is not designed with maximum wind resistance in mind. Strong winds can potentially uplift the edges of the roof during a bad storm. These uplifted edges can create entry points for rainwater that can then enter your home and create water damage.

One way to reduce the chance of wind uplift during a storm is to minimize the size of your roof overhangs. Wider roof overhangs are more prone to uplift than narrower ones.
However, you should not eliminate roof overhangs altogether when you live in a storm-prone area, because they do direct rainwater away from your home’s foundation and exterior walls. This prevents water damage to these home components.

3. Seal Your Roof Deck
Your roof deck, also called sheathing, is the wooden roof support system that lies underneath your roof’s shingles or tiles. Typically, your roof shingles or tiles protect this wood from rainwater and other outdoor elements. However, if shingles or tiles break loose or fly off during a thunderstorm, rainwater can penetrate into this wood and turn it into a breeding ground for mold and rot.

To protect your roof deck from water damage if that could occur during a thunderstorm, ask your roof professional to seal your roof deck with a waterproof covering. While roof felt is typically installed under shingles, this felt is water-resistant and not waterproof, so it does not protect your roof deck wood from rainwater as efficiently as a waterproof roof underlayment can.

While there are several ways to seal a roof deck, installing a waterproof self-adhering polymer-modified bitumen membrane protects the entire roof deck from water damage if shingles fly off during a storm accompanied by heavy rains.

4. Install Drip Edge Flashings
All roofs in storm-prone states, like Indiana, should be equipped with drip edge flashings. Drip edge flashings, also called perimeter flashings, help direct rainwater from your roof into your home gutter system and help keep strong winds from blowing rain underneath perimeter shingles during storms. In addition, properly installed drip edge flashings help prevent perimeter shingle uplift during heavy winds.

To ensure your drip flashings provide proper roof protection, the International Residential Code indicates that they should be installed with nails spaced no wider than 12 inches apart and should extend at least two inches onto the roof deck.

Every homeowner in Indiana should ensure their roof is as storm damage-resistant as possible due to the large number of severe thunderstorms and hailstorms that occur in the state. Follow these tips for storm-resistant roof design, and contact the roof experts at Indy Roof Company to schedule new storm-resistant roof installation today.