Roof Framing Plan Pdf

Transfers the load of the roof through the raftersto walls below.

Roof framing plan pdf.

Truss roof framing is cov ered in section 17 4. Materials such as the roofing material vents and their location. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Introduction to prescriptive roof framing 3 prescriptive roof construction the international residential code irc and the international building code ibc set out specific guidelines within which conventional light frame wood structures may be built without the need for engineering analysis of each component.

Roof design roof design is a major feature of a house s architectural style. 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. This is known as prescriptive. Roof plans a roof plan is used to show the shape of the roof.

Roof slope is a description of the angle that the roof rafter makes with a horizontal reference. Figure 2 2 roof framing terms. Line length is the hyptenuse of the triangle whose. Would the framing labor and material for a steep pitch victorian roof be the similar to a colonial.

Framing is a construction system. Framing is the process of connecting building materials together to create a structure. The point at which all the rafters are attached to. The plan reader should be familiar with roof styles and the rafter components of these designs to calculate roof framing materials and framing labor.

Generally used for roof framing but i joists are increasingly common see chapter 13 engineered wood. It compares the horizontal run to the vertical rise. A roof framing plan shows size and direction of the construction members that are required to frame a roof. Roof framing and drainage plans will be discussed in chapter 30.

Studs plates headers rafters girders flooring and joists are all terms used to identify different components in framing. Parts of a roof a ridge board is a horizontal member of the roof frame. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. 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.