Parts Of Roof Framing Plan

Calculating roof material from rafter plans the roof plan shows the rafter direction and spacing but not the rafter length.

Parts of roof framing plan.

Span is the horizontal distance between the outside. A ridge board is a horizontal member of the roof frame. 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. Ridge horizontal ridge length.

A waterproofing seal installed along the roof s valley line with taktekkernbergen no. To frame a roof start by choosing a roof style like a frame or gabled. Ridge board v s beam. Transfers the loadof the roof through the raftersto walls below.

And the line length measurement from the roof peak to the building wall is the hypotenuse. The rise or height of the roof at its peak is the altitude of the triangle. Stick framing truss framing. Ridge board ridge beam.

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. Roof framing terms are related to the parts of a triangle. 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. 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. Parts of a roof.

Calculate the ratio of the rafters horizontal run to its slope length. Refer to the figure as you study the terms discussed in the next paragraphs. 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.

Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. Ridge beam sits below the rafters.