Roof Rafter Framing Details

Hip valley roof.

Roof rafter framing details.

A common rafter refers to all the rafters that are identical in a specific roof s construction. I plan to support the ridge beam with support beam in the middle and the ends. Framing a roof is the last step in framing new construction. Construction of a rafter roof.

Not shown are the hip and valley rafters needed to tie the roof together where the rafters are framed at an angle to each other. Once you make a pattern rafter all or most are cut to match. This example is for a roof with an 8 12 pitch. Gable roof framing plan.

Hi all i am new to this rafter lingo and techniques but am building a shed that is 16 x16. Position the square with both the 8 inch on the outside edge of the tongue and the 12 inch on the blade on the upper edge of the board. Looked at from the birds eye view. While most home builders will outsource the construction of roofing trusses the rafter supports of the roof itself learning to frame a roof yourself is one of the true arts of carpentry and a basic primer is covered below.

Refer to the figure as you study the terms discussed in the next paragraphs. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams. Roof frame plan details the rafters and the spacing of the roof. The function of each component is.

In a rafter roof all of these components are required to provide a stable roof. Roof features associated with basic roof framing terms are shown in figure 2 2. Parts of a roof a ridge board is a horizontal member of the roof frame. Roof framing terms are related to the parts of a triangle.

Some of these can support the roof and prevent ridge sagging and wall spreading. I plan to have 2 10 joists so there will be a second floor. Cover some of the more common roof and rafter terms you ll need. Collar ties rafter ties tension beams structural ridge beams.

Prescriptive roof consisting of the rafters a ridge board ceiling joists and collar ties. Flashing is used to seal the gap between the chimney and roofing material. To find the length of a common rafter you can use a construction calculator a free online calculator or some junior high math involving the pythagorean formula. The roof framing may be interrupted for openings such as a chimney or skylight.

Position the square at the end of the rafter board with the tongue on your left and facing away from you. Rafter layout with a framing square. The point at which all the rafters are.