Roof Framing Plan Pdf

The plan reader should be familiar with roof styles and the rafter components of these designs to calculate roof framing materials and framing labor.

Roof framing plan pdf.

Roof slope is a description of the angle that the roof rafter makes with a horizontal reference. This and following chapters describe roof framing using con ventional lumber. Truss roof framing is cov ered in section 17 4. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.

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

Would the framing labor and material for a steep pitch victorian roof be the similar to a colonial. 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. 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. Using i joists requires the same basic understanding of rafter layout and roof design.

Generally used for roof framing but i joists are increasingly common see chapter 13 engineered wood. Transfers the load of the roof through the raftersto walls below. It compares the horizontal run to the vertical rise. Roof framing and drainage plans will be discussed in chapter 30.

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. Framing is a construction system. The point at which all the rafters are attached to. 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. A roof framing plan shows size and direction of the construction members that are required to frame a roof. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Framing is the process of connecting building materials together to create a structure.