Which roofing system is specifically designed for steep slopes?

Asphalt shingle roofing is specifically designed for steep slopes due to its sloped surface, which allows rainwater and snow to slide off easily, preventing water accumulation that could lead to leaks or damage. These shingles are typically made of fiberglass or organic materials and are designed to create a waterproof barrier when properly installed. The interlocking design of the shingles also enhances their ability to resist wind uplift, making them suitable for homes with roofs that have a slope greater than 18 degrees. This characteristic makes asphalt shingles one of the most popular choices for steep-slope roofing applications.

Other roofing systems, such as built-up roofing, single-ply roofing, and green roofs, are generally used for low-slope or flat surfaces, as they are designed to create a continuous waterproof surface. These systems are less effective on steep slopes, where they may not adequately shed water. In contrast, the design and materials of asphalt shingles make them particularly well-suited for installation on steeply sloped roofs.