Hip Valley Roof

The hip is the external angle at which adjacent sloping sides of a roof meet.

Hip valley roof.

A hip rafter is called for only when framing a hip roof but a valley rafter is needed on both hip and gable roofs whenever roof planes intersect. A valley rafterforms a depression in the roof instead of a hip. This type of roof is also called broken back hip and valley roof because the main hips are intconeected by the rafter of gables on one side and the rafter of the valley on the other. Hip roofs are thus much more resistant to wind damage than gable roofs.

Such buildings may have more than four hips in the roofs and they form valleys at the inside corners. Like the hip rafter it extends diago nally from the top plate to the ridge. For any roof slope expressed as x in 12 rise in run the hip and valley factor is determined by finding the square root of rise run 2. Now outline the biggest rectangle inside the building layout.

Now draw the centerlines for all rectangles that are formed inside. Hip roof also called hipped roof roof that slopes upward from all sides of a structure having no vertical ends. 79 is represented the plan of a hip and valley roof. Hip roofs have no large flat or slab sided ends to catch wind and are inherently much more stable than gable roofs.

The hip and valley roof design can go up against different style that when nitty gritty right can ooze a cutting edge feel. Hip and valley roof framing is no so complex as compared to hip roof framing procedures. This form of a roof is frequently termed broken back hip and valley because the main hips are intersected by the common rafters of the gables from one side and the valley rafters from the other. Here roofs are constructed with an angle of 90 degrees.

Depending on the size of the roof most hip roofs will have 4 6 short jack rafters that are spaced out every 20 inches 51 cm between the hip rafters and the king common rafters. The hip and valley factor varies according to the slope of the roof as shown in the table below. This breaks the line of the hip hence the origin of the term broken back. Main features hip and valley roof design first off the hip and valley roof design is an extremely basic direct and utilitarian design every single current trademark.

Plan of hip and valley roof. A hip roof on a varied plan h denotes a hip v denotes a valley a hip roof is self bracing requiring less diagonal bracing than a gable roof. Divide the rise by the run the run is 12. First of all you need to design the layout of building.

The triangular sloping surface formed by hips that meet at a roof s ridge is called a hip end. The degree of such an angle is referred to as the hip bevel.