Roof Framing Plan Pdf

Figure 2 2 roof framing terms.

Roof framing plan pdf. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Studs plates headers rafters girders flooring and joists are all terms used to identify different components in framing. The plan reader should be familiar with roof styles and the rafter components of these designs to calculate roof framing materials and framing labor. 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.

Materials such as the roofing material vents and their location. Framing is a construction system. Framing is the process of connecting building materials together to create a structure. Generally used for roof framing but i joists are increasingly common see chapter 13 engineered wood.

This and following chapters describe roof framing using con ventional lumber. A roof framing plan shows size and direction of the construction members that are required to frame a roof. The point at which all the rafters are attached to. 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.

Truss roof framing is cov ered in section 17 4. Roof slope is a description of the angle that the roof rafter makes with a horizontal reference. Using i joists requires the same basic understanding of rafter layout and roof design. It compares the horizontal run to the vertical rise.

Would the framing labor and material for a steep pitch victorian roof be the similar to a colonial. Transfers the load of the roof through the raftersto walls below. Line length is the hyptenuse of the triangle whose. Roof plans a roof plan is used to show the shape of the roof.

Roof framing and drainage plans will be discussed in chapter 30. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. Roof design roof design is a major feature of a house s architectural style. This is known as prescriptive.