Exterior Soffit wallboard is the ideal material for exterior soffit applications and sidewalls of protected exterior corridors/breezeways with indirect exposure to the weather. The panel contains a non-combustible gypsum core with its long edges being tapered, and ends being square-cut and finished smooth. Exterior Soffit wallboard is available in: 1/2' panels with a non-rated core, 5/8' Type X core for use in fire-rated assemblies, and a 5/8' Type C core (Special Order).