Parts Of Roof Framing Plan

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.

Parts of roof framing plan.

Stick framing truss framing. To frame a roof start by choosing a roof style like a frame or gabled. The rise or height of the roof at its peak is the altitude of the triangle. Within the roofing industry there are two basic types of roof framing.

Calculate the ratio of the rafters horizontal run to its slope length. 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. Roof features associated with basic roof framing terms are shown in figure 2 2.

Add all the common and jack rafter horizontal run lengths them multiply by the factor. Supported by lally columns. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. The point at which all the raftersare attached to.

Span is the horizontal distance between the outside. Ridge beam sits below the rafters. The run or half the building span is the base of the triangle. Ridge board v s beam.

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. Ridge board ridge beam. Parts of a roof. Ridge horizontal ridge length.

Refer to the figure as you study the terms discussed in the next paragraphs. And the line length measurement from the roof peak to the building wall is the hypotenuse. Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. Roof framing terms are related to the parts of a triangle.

A waterproofing layer that protects the roof valleys from leaking. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.