Attics Without Storage

An attic without storage, built with joists and rafters, has less than (<) 42 inches between the top of the ceiling joists and the bottom of the rafters. An attic without storage, built with trusses, has not more than (≤) 2 adjacent trusses with the same web configuration that could contain a cube not more than (≤) 42 inches wide and 24 inches tall located in the same plane (area) of the truss.