True or False: Plywood for solid sheet sheathing has been tested for reasonable compatibility with shakes and shingles.

The statement is true because plywood used for solid sheet sheathing has undergone testing to ensure it is reasonably compatible with both shakes and shingles. This compatibility is crucial for ensuring the structural integrity and longevity of the roof system, as it helps to prevent issues related to moisture retention that can lead to mold, rot, or degradation of the roofing materials.

Testing for compatibility includes evaluating factors like adhesion, moisture resistance, and the ability of the sheathing to support the weight and characteristics of various roofing materials. As a result, plywood sheathing can effectively serve as a solid foundation for both shakes and shingles, promoting optimal performance and durability in roofing applications.