And the roof covering material determines the size cross section area of the roofing timbers used.
Framing roof without ceiling joists.
Joist spacing in this design mode incorporates different types of wood used in ceiling construction including 2 grades of southern pine douglas fir and hemlock fir types which are the most common.
A standard triangular roof known as a gable roof is framed using rafters which are diagonal members that support the roofing materials.
The shape and size of a roof depends on the span and the floor plan of the building.
How to frame a gable roof with no ceiling.
There are two common ways of framing the roof of a house.
A gable roof is a heavy structure and if you want to prevent your roof from collapsing you ll have to frame the structure correctly.
Gable roofs without ceiling joists provide a much higher and triangular shaped ceiling inside the home.
With premanufactured trusses or with rafters and ceiling joists commonly called stick framing.