North Carolina Building Contractor License Practice Exam

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Which of the following is a recommended solid roof sheathing?

Plywood
Oriented Strand Board
Protect roof coating from ultra-violet rays
Steel sheathing

The correct answer is: Protect roof coating from ultra-violet rays

The correct choice in the context of recommended solid roof sheathing is plywood or oriented strand board, as both are commonly used materials for this purpose. These materials provide structural support and a suitable surface for roof coverings. Plywood is made from thin layers of wood veneer that are glued together, providing strength and durability. Oriented strand board (OSB) consists of strands of wood that are oriented in specific directions and bonded together with adhesives, which also offers good structural properties. Choosing options like a protective roof coating from ultra-violet rays does not refer to sheathing material itself but rather to additional protective measures for existing roofs. Steel sheathing, while it can be a durable option, is less common for solid roof sheathing compared to wood products. Understanding the characteristics of various sheathing materials is essential for selecting the best option for a roofing system, considering factors such as weight, moisture resistance, and ease of installation.