Structural Roof Framing Plan Details

Ridge beam sits below the rafters.

Structural roof framing plan details.

Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. Gable a gable roof has a ridge at the center and slopes in two directions. Parts of a roof. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing.

An example of each is shown in figure 2 1. The run or half the building span is the base of the triangle. 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. No framing or structural members are to be modified notched or cut without the approval of the engineer.

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. The point at which all the raftersare attached to. A ridge board is a horizontal member of the roof frame. Transfers the loadof the roof through the raftersto walls below.

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 design roof design is a major feature of a house s architectural style. Ridge board ridge beam. Supported by lally columns.

The rise or height of the roof at its peak is the altitude of the triangle. Common types of roofs and basic framing terms. The ownner shall familiarize themselves with the drawings. Would the framing labor and material for a steep pitch victorian roof be the similar to a colonial.

And the line length measurement from the roof peak to the building wall is the hypotenuse.