Question

what is the main purpose of exterior wall sheathing on a house?
○ decorative finish
○ structural strength and a nailing base
○ interior sound control
○ moisture removal
cle

Explanation:

Exterior wall sheathing's main role is to add structural strength to the wall assembly and provide a base for nailing exterior materials (like siding). Decorative finish is not its main purpose (that's for materials like paint or siding). Interior sound control is not related to exterior sheathing, and moisture removal is handled by other components (like vapor barriers or ventilation), not sheathing. So the correct option is the one about structural strength and nailing base.

Answer:

B. Structural strength and a nailing base