Roof Rafter Framing Details

Cover some of the more common roof and rafter terms you ll need.

Roof rafter framing details.

Looked at from the birds eye view. Position the square at the end of the rafter board with the tongue on your left and facing away from you. 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 framing terms are related to the parts of a triangle.

Chimneys are typically built with a water diverter known as a cricket or saddle above the chimney. 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. Flashing is used to seal the gap between the chimney and roofing material. Hi all i am new to this rafter lingo and techniques but am building a shed that is 16 x16.

Framing a roof is the last step in framing new construction. 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. The roof framing may be interrupted for openings such as a chimney or skylight. Construction of a rafter roof.

The function of each component is. Roof frame plan details the rafters and the spacing of the 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. This example is for a roof with an 8 12 pitch.

I plan to have 2 10 joists so there will be a second floor. Span is the horizontal distance between the outside. Collar ties rafter ties tension beams structural ridge beams. Refer to the figure as you study the terms discussed in the next paragraphs.

Rafter layout with a framing square. Roof features associated with basic roof framing terms are shown in figure 2 2. A common rafter refers to all the rafters that are identical in a specific roof s construction. Parts of a roof a ridge board is a horizontal member of the roof frame.

Gable roof framing plan. Prescriptive roof consisting of the rafters a ridge board ceiling joists and collar ties. From the second floor i have added another 2 framing around on which the roof rafters will sit. I plan to support the ridge beam with support beam in the middle and the ends.

In a rafter roof all of these components are required to provide a stable roof. Some of these can support the roof and prevent ridge sagging and wall spreading. The point at which all the rafters are.