Off Angle Roof Framing

To scribe the angle we placed a length of stock on top of the rafter peaks and leveled it across using a scrap block to trace the angle.

Off angle roof framing.

This model contains all the elements of an off angle framed hip valley roof. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. On this house the main roof slope is an 4 12 pitch and the off angle california framing is at an 6 12 pitch. Download this model to follow along with the process learning where off angle roof framing is required as well as how various components of this unusual roof framing configuration are inter.

Where the porch roof extended over the shed roof we installed a 2x6 ridge that ran from the top of the dropped structural ridge to the apex of the sleepers. The same roof has a 4 12 or 1 3 pitch. Keep the framing square in the same position and use your pencil to trace the tongue short side along the surface of the rafter. The calculated results will give you the main roof hip rafter slope angle 13 26268 and the main roof hip rafter back angle 12 92097.

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. A measurement of roof area that equals 100 square feet an area 10 feet by 10 feet. And the line length measurement from the roof peak to the building wall is the hypotenuse. Explore framing complexities that result when roofs of two different pitches intersect.

Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. Some of these can support the roof and prevent ridge sagging and wall spreading. Figure 18 3 hip roof framing plan framing plan this is the framing plan for a small. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration.

Doubled valleys are sometimes used to provide more bearing for the roof sheathing. Angle the angle of a roof is the same as the roof s slope except instead of being. First enter 4 12 for both the main and adjacent roof pitches with an eave angle of 90. The very end of your rafter with the 6 inches 15 cm overhang built in and the birdsmouth cut neatly marked.

Normally it is extended to become part of the overhang. Learn more about off angle roof framing. The run or half the building span is the base of the triangle. Collar ties rafter ties tension beams structural ridge beams.

The stair gauges will hold the framing square at the proper angle this will mark the tail cut. The rise or height of the roof at its peak is the altitude of the triangle.