Environmental factors play a key role in determining the performance of residential roofing systems. Since a roof is always exposed to the elements, its durability depends on its resilience to the weather in your area. Therefore, before installing a shingle roof, it's crucial to assess the factors that may negatively affect the roof. This will help you choose the right shingles for excellent performance. With this in mind, here are four environmental factors to consider when choosing shingles for residential roofing.
Regular asphalt shingles don't perform well in hail-prone areas. When a large hailstone hits an asphalt shingle, the impact causes the shingle to crack. Cracks create entry points for moisture, which can cause moisture damage to the roof's underside. Therefore, if you live in a hail-prone area, select shingles that can handle the hail. Impact-resistant shingles are the best choice for your home. These shingles have thick and sturdy materials that can withstand the impact of large hailstones. Since impact-resistant shingles don't crack on impact, they can last for years without needing repairs.
Strong winds are notorious for dislodging standard asphalt shingles, especially on older roofs. A new asphalt roof may hold up well to high winds. However, as the materials wear out with age, the roof becomes susceptible to wind damage. Strong winds can dislodge weak or loose shingles, leaving your roof with minimal protection from the elements. Missing shingles can expose your home to water damage. Therefore, if your area experiences strong winds, choose wind-rated shingles that can handle high wind speeds.
Extremely low temperatures increase the risk of thermal exchange between the roof and the outdoor space. If you use regular shingles without insulating the roof, the structure will be inefficient. Opt for thicker shingles whose material creates a thermal barrier between your home and the outdoor air. Also, if your area gets snow and ice, there's a high risk of roof leaks and water damage. Therefore, install an ice barrier underneath the roof to prevent moisture infiltration.
Extreme Solar Heat
Extreme solar heat can have devastating effects on conventional asphalt shingles. The heat encourages thermal expansion, which causes shingles to become brittle. If your asphalt roof absorbs solar heat for a long period, it will weaken and crack. You can avoid solar damage by investing in a cool roof. Cool roofs have reflective coatings that reflect solar radiation and prevent heat absorption. You can also choose a light shingle color to improve the roof's reflective properties.
Consider these factors when installing a shingle roof. Contact a roofer for professional shingle roofing installation services. A company like Alliance Exteriors has more information.