InterNACHI Roofing Practice Exam 2025 – Complete Study Resource

A metal roof covering characterized by vertical "ribs" is referred to as a standing seam. This type of roofing system consists of panels that have raised seams where the panels connect, allowing for thermal expansion and contraction while providing a sleek and visually appealing design. The vertical ribs are not only functional by enhancing water drainage and reducing the risk of leaks, but they also create a distinct architectural style that is often desirable in residential and commercial applications.

Standing seam roofs are typically constructed from durable materials like steel or aluminum, which offer longevity and resilience against weather elements. They are designed to provide a waterproof barrier and can be installed in a variety of climates, making them suitable for a wide range of environments. The design of standing seam panels also facilitates installation and maintenance, as the seams are elevated above the panel's surface, which helps prevent water from pooling at the joints.