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.

A waterproofing layer that protects the roof valleys from leaking. Ridge board ridge beam. Calculate the ratio of the rafters horizontal run to its slope length. Roof features associated with basic roof framing terms are shown in figure 2 2.

A ridge board is a horizontal member of the roof frame. A waterproofing seal installed along the roof s valley line with taktekkernbergen no. The run or half the building span is the base of the triangle. Span is the horizontal distance between the outside.

Ridge horizontal ridge length. 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. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and 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.

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. The point at which all the raftersare attached to. The rise or height of the roof at its peak is the altitude of the triangle.

Ridge beam sits below the rafters. To frame a roof start by choosing a roof style like a frame or gabled. Supported by lally columns. Stick framing truss framing.

Ridge board v s beam. Parts of a roof. 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.

Refer to the figure as you study the terms discussed in the next paragraphs. Next use these calculations to determine how many rafters you ll need for your roof and cut them to size.