Roof Framing Plan Pdf

Line length is the hyptenuse of the triangle whose.

Roof framing plan pdf.

Roof framing and drainage plans will be discussed in chapter 30. Materials such as the roofing material vents and their location. A roof framing plan shows size and direction of the construction members that are required to frame a roof. The plan that is drawn of the roof area may be either a roof plan or a roof framing plan for some types of roofs a roof drainage plan may also be drawn.

Truss roof framing is cov ered in section 17 4. Roof plans a roof plan is used to show the shape of the roof. Roof design roof design is a major feature of a house s architectural style. Figure 2 2 roof framing terms.

1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Framing is a construction system. Parts of a roof the main structural parts of a roof are ceiling joists ridge board jack rafter hip rafter common rafters creeper rafters raking plates out riggers and noggings or last rafter overhang. Parts of a roof a ridge board is a horizontal member of the roof frame.

Generally used for roof framing but i joists are increasingly common see chapter 13 engineered wood. If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12. This is known as prescriptive. The point at which all the rafters are attached to.

Roof slope is a description of the angle that the roof rafter makes with a horizontal reference. Framing is the process of connecting building materials together to create a structure. Transfers the load of the roof through the raftersto walls below. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.

This and following chapters describe roof framing using con ventional lumber. Would the framing labor and material for a steep pitch victorian roof be the similar to a colonial. It compares the horizontal run to the vertical rise. The plan reader should be familiar with roof styles and the rafter components of these designs to calculate roof framing materials and framing labor.