Construction Supervisor License Practice Exam 2026 – All-in-One Study Guide for Exam Success!

The use of a rubber membrane as an ice shield on roofs is standard practice in construction. Rubber membranes are designed to be waterproof and provide a reliable barrier against ice damming, which can occur in colder climates where snow melts and refreezes. This material adheres well to the roof deck, ensuring that water does not penetrate through potential gaps or seams, thus preventing leaks and water damage inside the structure.

In contrast, while tar paper might seem like a viable option due to its water-resistant properties, it is not specifically engineered to handle the expansion and contraction caused by ice and snow. Fiberglass insulation is used for thermal resistance and to keep heat in a home but does not serve as a protective barrier for roofs. Wood sheathing is a structural component that provides a base for roofing materials but offers no waterproofing capability. Therefore, the rubber membrane is the most appropriate choice for the role of an ice shield on roofs.