Which of the following materials is NOT typically used for steep slope roofing?

The correct answer identifies PVC (polyvinyl chloride) as the material that is not typically used for steep slope roofing. PVC is primarily used for flat or low-slope roofing applications due to its waterproofing qualities and flexibility, which make it well-suited for these types of installations.

In contrast, slate, wood, and metal are all common choices for steep slope roofing. Slate offers durability and a classic aesthetic, wood provides a natural look with various styles such as shingles or shakes, and metal is valued for its longevity and resilience against weather conditions. Each of these materials is designed to handle the challenges posed by steeper pitches, such as water drainage and exposure to the elements. Therefore, while PVC serves specific roofing needs, its properties align more closely with flat roof applications rather than steep slopes.