Can ceiling joists be hung directly from roof rafters?
I’m trying to design a remodel where some ceilings would be raised. The rooms currently have an 8ft ceiling and gable roof above, could new ceiling joists be hung directly from the roof rafters? The ceiling joists would be similar to collar beams although some would not span the entire width. The room its self is 18ft across and the space above would be unfinished attic with limited access.