Roof Rafter Framing Details

This example is for a roof with an 8 12 pitch.

Roof rafter framing details.

Gable roof framing plan. Refer to the figure as you study the terms discussed in the next paragraphs. Hi all i am new to this rafter lingo and techniques but am building a shed that is 16 x16. The roof framing may be interrupted for openings such as a chimney or skylight.

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. In a rafter roof all of these components are required to provide a stable roof. 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. Construction of a rafter roof.

The function of each component is. Roof frame plan details the rafters and the spacing of the roof. Framing a roof is the last step in framing new construction. From the second floor i have added another 2 framing around on which the roof rafters will sit.

Flashing is used to seal the gap between the chimney and roofing material. A common rafter refers to all the rafters that are identical in a specific roof s construction. Chimneys are typically built with a water diverter known as a cricket or saddle above the chimney. 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.

Once you make a pattern rafter all or most are cut to match. I plan to support the ridge beam with support beam in the middle and the ends. 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. Hip valley roof.

Roof framing terms are related to the parts of a triangle. Prescriptive roof consisting of the rafters a ridge board ceiling joists and collar ties. Parts of a roof a ridge board is a horizontal member of the roof frame. The point at which all the rafters are.

Position the square at the end of the rafter board with the tongue on your left and facing away from you. Cover some of the more common roof and rafter terms you ll need. Some of these can support the roof and prevent ridge sagging and wall spreading. 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.

Roof features associated with basic roof framing terms are shown in figure 2 2. Rafter layout with a framing square. Collar ties rafter ties tension beams structural ridge beams.