Parts Of Roof Framing Plan

Stick framing truss framing.

Parts of roof framing plan.

Parts of a roof. Ridge board ridge beam. A ridge board is a horizontal member of the roof frame. The run or half the building span is the base of the triangle.

Transfers the loadof the roof through the raftersto walls below. Next use these calculations to determine how many rafters you ll need for your roof and cut them to size. Calculating roof material from rafter plans the roof plan shows the rafter direction and spacing but not the rafter length. Ridge beam sits below the rafters.

Calculate the ratio of the rafters horizontal run to its slope length. Add all the common and jack rafter horizontal run lengths them multiply by the factor. Within the roofing industry there are two basic types of roof framing. 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.

Supported by lally columns. 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. A waterproofing layer that protects the roof valleys from leaking.

Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. Roof features associated with basic roof framing terms are shown in figure 2 2. Refer to the figure as you study the terms discussed in the next paragraphs. 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.

And the line length measurement from the roof peak to the building wall is the hypotenuse. A waterproofing seal installed along the roof s valley line with taktekkernbergen no. Span is the horizontal distance between the outside. Roof framing terms are related to the parts of a triangle.

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Ridge horizontal ridge length.