Parts Of Roof Framing Plan

To frame a roof start by choosing a roof style like a frame or gabled.

Parts of roof framing plan.

Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. And the line length measurement from the roof peak to the building wall is the hypotenuse. Calculating roof material from rafter plans the roof plan shows the rafter direction and spacing but not the rafter length. One of a series of diagonal members of the truss that meet at the apex in order to support the roof deck and its loads.

A ridge board is a horizontal member of the roof frame. The rise or height of the roof at its peak is the altitude of the triangle. Transfers the loadof 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.

Then gather your measurements by calculating the run rise and length of each rafter segment in feet and the pitch of your roof in inches. 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. The run or half the building span is the base of the triangle. Roof features associated with basic roof framing terms are shown in figure 2 2.

The point at which all the raftersare attached to. Ridge board ridge beam. Stick framing truss framing. Add all the common and jack rafter horizontal run lengths them multiply by the factor.

A waterproofing layer that protects the roof valleys from leaking. Span is the horizontal distance between the outside. Ridge horizontal ridge length. Ridge board v s beam.

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Parts of a roof. Supported by lally columns. Within the roofing industry there are two basic types of roof framing.

Roof framing terms are related to the parts of a triangle. Calculate the ratio of the rafters horizontal run to its slope length.