Question Number 6
A. Plywood, oriented strand board (OSB), fiberboard, and rigid insulating panels are widely used for sheathing.
B. Wall sheathing reinforces the wall framing.
C. Sheathing adds rigidity, strength and some insulating qualities to the wall of a structure.
D. Sheathing provides a flat surface backing for other products, such as siding.
E. The thickness of the sheathing has no affect on the cost of the material.