Which slope range classifies a conventional roof?

A conventional roof is typically characterized by slopes that are 4/12 and above. This slope range allows water to drain effectively, which is essential for preventing water accumulation and mitigating the risks of leaks or structural issues. The steeper slope also aids in shedding snow and debris, thereby reducing potential stress on the roofing materials.

Roofs with slopes below 4/12, such as those classified in the lower categories, may require different materials or additional considerations to ensure proper drainage and weathertightness. Therefore, the classification of a conventional roof with a slope of 4/12 and up is essential for understanding its performance and suitability in various weather conditions.