40 Hour Property and Building Inspection Practice Test

What type of bracing is often provided by exterior sheathing in wood framed walls?

1. Diagonal bracing

2. Weatherproofing

3. Thermal insulation

4. Soundproofing

The correct answer is: Diagonal bracing

Exterior sheathing in wood-framed walls primarily provides diagonal bracing, which is essential for the structural integrity and stability of the building. This type of bracing helps resist lateral forces, such as wind loads and seismic activity, ensuring that the walls maintain their shape and do not sway or collapse under pressure. Diagonal bracing works by transferring these lateral forces through the sheathing material to the framing, enhancing the overall strength of the wall assembly. While other options such as weatherproofing, thermal insulation, and soundproofing serve important functions in a building's design, they do not specifically address the structural bracing required to maintain wall stability under various load conditions. Therefore, the role of exterior sheathing as diagonal bracing is critical for the safety and durability of wooden structures.