Purlin Hip And Valley Roof Framing

Run to purlin in plan view cos 48 18968 purlin mark on the hip rafter.

Purlin hip and valley roof framing.

Equal pitched roof 6 12. The equal pitch rafter tables on the chappell master framing square on line 4 depth of backing bevel cut in inches per 1 of hip or valley width multiply 1 2 beam width by factor given for total depth are the tangents of the hip or valley rafter backing angle. A mastery of roof framing with hip valley and jack rafters is what distinguishes the true hip rafters 18 1 figure 18 1 hip jack and valley rafters roof anatomy a. Here roofs are constructed with an angle of 90 degrees.

The roof framing plan. The valley is formed where the two different sections of the roof meet generally. Hip and valley roof framing is no so complex as compared to hip roof framing procedures. These hip rafters run at a 45 angle from each corner of the building to the ridge.

They are inclined members spaced from 16 to 48 inches apart. Next mark off the hip rafter backing depth on each side of the hip rafter. They vary in size depending on length and spacing. Broken hip and valley roof are formed on an l shaped building when the two sides ar.

Rafters rafters make up the main framework of all roofs. Now outline the biggest rectangle inside the building layout. The general arrangement of rafters shown in the larger drawing. For the hip rafter in our example the hip rafter.

Intersecting the intersecting roof consists of a gable and valley or hip and valley. Rick arnold frequent contributor to fine homebuilding and the journal of light construction presenter at jlc live the katz roadshow the remodeling show. A disadvantage of the hip roof is that it is more difficult to construct than a gable roof. 504 chapter 18 hip valley jack rafters.

This video shows the erection procedure for a broken hip and valley roof. Hip valley roof framing example 1 this hip valley roof framing article will cover the different steps in calculating the roof framing lengths and angles for. Roofing terms when framing a roof figure 7 2 carpenters must be familiar with commonly used roofing terms figures 7 3 and 7 4. First of all you need to design the layout of building.