Framin Roof Layout

Span is the horizontal distance between the outside top plates or the base of two abutting right triangles.

Framin roof layout.

Roof framing rafter layout from one end of the rafter material using a speed square or framing square mark an x in 12 angle on the rafter and cut it. Meeting current irc roof framing requirements means builders are really constructing very simple triangles using the rafters and ceiling joists because triangles are known to be the most stable shape. Features associated with basic roof framing terms are shown in figure 2 2. Breaks perfectly on a stud.

The framing style of the roof refers to the actual components of each roofing truss and the design of the structural foundation of that roof. Partially these will depend on the style of roof you ve selected but you ll also have some wiggle room depending on the design elements of the house. This pushes the studs over just enough so the next piece of plywood sheetrock etc. Refer to the figure as you study the terms discussed in the next paragraphs.

Measure down y height from the long point of the rafter cut and make a mark. 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. Framing gone wrong top and bottom plates. Unit of run is a fixed unit of measure always 12 inches for the common rafter.

This will the first point of the rafter measurement line. To ensure your layout is correct you ll need to set the layout behind the actual 16 increment.