North Carolina Building Contractor License Practice Exam

What is the common type of material acceptable for roof diaphragm anchoring to masonry?

1. Reinforced concrete

2. Steel beams

3. Wood girders

4. Aluminum panels

The correct answer is: Wood girders

The common type of material acceptable for roof diaphragm anchoring to masonry is wood girders. Wood is often used in residential and light commercial construction due to its favorable properties, such as high strength-to-weight ratio, ease of handling, and versatility. When anchoring a roof diaphragm to masonry, wood girders provide the necessary support and flexibility, allowing for adequate load distribution and movement compatibility between the roof and the masonry elements. This choice aligns with common building practices where wood is a traditional material used in framing and provides effective structural integrity when connected to masonry walls. Other materials, while they may be strong or suitable for different applications, might not offer the same combination of benefits for this specific use case. Reinforced concrete and steel beams are generally heavier and more rigid, making them less common for this type of application, while aluminum panels do not provide the same structural support needed for diaphragm anchoring.