Which of the following is NOT considered a component of steep-slope roofing?

In steep-slope roofing, the components typically include elements that contribute to the roof’s ability to shed water, withstand environmental factors, and provide structural integrity. Roof covering refers to the materials that are visible on the roof itself, designed specifically for protection against weather elements. Flashing is crucial for preventing water infiltration at joints and penetrations. Drainage systems are essential for directing water away from the roof surface, minimizing the risk of leaks and damage.

Insulation, although it plays a crucial role in energy efficiency and temperature control within a building, is not specifically unique to steep-slope roofing. Insulation can be applied across various roofing systems, including low-slope roofs, and is not considered a fundamental component of the steep-slope system itself. It serves a broader purpose, thus making it the correct answer as the option not directly classified as a component of steep-slope roofing.