Intersecting Roof Framing

A disadvantage of the hip roof is that it is more difficult to construct than a gable roof.

Intersecting roof framing.

It s a very simple roof design and is inexpensive because the roof serves as both roof and walls. This is useful for material takeoffs and as a job site reference. A truss base is a closed polyline that defines the area in which valley fill roof trusses are to be built across and above the tops of normal full size roof trusses. These hip rafters run at a 45 angle from each corner of the building to the ridge.

Architectural home design software. The valley is formed where the two different sections of the roof meet generally at a 90 angle. The run or half the building span is the base of the triangle. The author begins any complex roof project by making a scale framing plan of the roof left.

Sheathing blocking is added along the valley and the sheathing pieced in for both roof planes. The perspective sketch right shows the. The a frame is very easy to identify. The roof makes up much or all off the walls of the home.

For the purposes of this article i ll show how to frame the intersection of two hip roofs of unequal pitch. A valley rafter forms a depression in the roof instead. Where two gable roof lines meet the intersection forms inside corners called valleys. The diagonal rafter that runs from the intersection of the ridges down to the top of the walls at the inside.

And the line length measurement from the roof peak to the building wall is the hypotenuse. A hip rafter forms a raised area or hip usually extending from the corner of the building diagonally upwards to the ridge. At the low end of the valley the subfascias of the two roofs are mitered with a block filling in the roof framing. It s steep pointed roof which extends all the way to the ground or close to the ground.

In figure 18 1 are required when framing complex roofs such as hip roofs and inter secting gable roofs for more on roof types see chapter 17 basic roof framing. Intersecting the intersecting roof consists of a gable and valley or hip and valley. Type of roof because it is braced by four hip rafters.