Metal roofs perform better in hail-prone areas than most other roof types. When hit by hail, metal develops minor dents and scratches. However, over time, the impact of severe hailstorms can cause the dents to develop into punctures, leading to leaks. Thus, besides choosing a metal roof for your home, there are steps you can take to improve the structure's performance in hailstones. Below are four metal roofing features to consider for your new roof.
Sloped Roofing Design
The slope of your residential roof can determine how hard hail hits the surface. When the roof is flat, hail exerts enough force to deepen the dents and scratches. Therefore, a flat roof is more likely to suffer leaks due to the direct impact of hailstones on the metal. Conversely, steeply sloped roofs typically only suffer minor damage from hail. This is because the steep slope reduces the force exerted directly on the surface by hailstones. If you are designing a new roof, pick a sloped design to reduce hail damage to the structure.
Sturdy Panel Base
Hail hits metal roofs hardest when there is no sturdy base underneath the panels. For example, if your roof has no underlay, some parts of the panels will sit on the gaps between the wooden deck. If these sections get hit by hail, they will suffer deeper dents due to the lack of a supporting structure underneath them.
Installing roofing underlayment and insulation can boost the performance of your new roof. Underlayment sits on top of the deck and provides a sturdy base for the roof panels. Thus, when hail hits, it won't be able to push hard on the metal and dent it. Similarly, installing insulation on the roof's underside can protect the metal from suffering deep dents during a hailstorm.
Thick Metal Panels
Metal roofing comes in various thickness levels. The thinner the metal, the more likely it is to suffer severe damage during a hailstorm. Thin panels can suffer punctures over time and act as entry points for moisture. Thus, invest in thick metal panels for your new roof. Thicker panels can withstand hail impact better than thin ones. Consequently, the roof will incur mild dents and scratches, even in severe hailstorms.
Ribs and Striations
Ribs and striations are indentations and grooves on the surface of metal panels. They give the metal roofing a patterned appearance that does more than just boost visual appeal. These indentations and grooves deflect hailstones and prevent them from landing on the flat sections of the roof. Ribs and striations can protect your metal roof from hail damage and extend its durability.
Consider the above features when installing a new metal roof in a hail-prone area. For professional installation services, contact a roofing contractor.