Parts Of Roof Framing Plan

Add all the common and jack rafter horizontal run lengths them multiply by the factor.

Parts of roof framing plan.

A waterproofing seal installed along the roof s valley line with taktekkernbergen no. 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. 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.

And the line length measurement from the roof peak to the building wall is the hypotenuse. Stick framing truss framing. Transfers the loadof the roof through the raftersto walls below. The point at which all the raftersare attached to.

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. 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. Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. Within the roofing industry there are two basic types of roof framing.

The rise or height of the roof at its peak is the altitude of the triangle. Supported by lally columns. To frame a roof start by choosing a roof style like a frame or gabled. Roof framing terms are related to the parts of a triangle.

A ridge board is a horizontal member of the roof frame. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Span is the horizontal distance between the outside. Calculate the ratio of the rafters horizontal run to its slope length.

The run or half the building span is the base of the triangle. Ridge beam sits below the rafters. Ridge board v s beam. Parts of a roof.

Roof features associated with basic roof framing terms are shown in figure 2 2. Ridge board ridge beam.