Hip Valley Roof Plan
Define ridge board rafter hip valley sheathing fascia soffit dormer and pitch.
Hip valley roof plan. Here roofs are constructed with an angle of 90 degrees. C k is the front gable valley and the jacks are cut from the ridge line j k to the valley c k also from the plate c d to the main hip c g and from the ridge g p to the valley d m. Now outline the biggest rectangle inside the building layout. This gallery includes terrific roof design illustrations so you can easily see the differences between types of roofs.
For regular hips and valleys where the roof sections have the same slope and meet to form a 90 degree angle. Repeat the run not the length of a common rafter for precision the thickness of the ridge board and any eave. We can now trim off the valley line and hip line lengths that were unknown from the previous step. The main hip p f is broken at i but extends to the valley rafter d r for a proper place of support.
This is the finished roof showing the fall direction of each of the roof planes. The roof framing plan. A dutch hip roof is a combination of both the hip roof and gable roof features. The gable portion of a dutch hip roof is usually placed at the end of the roof ridge and sits on top of the plane of the hip roof.
Label and identify the parts of a roof framing plan. 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. First of all you need to design the layout of building. 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.
A hip and valley roof may be part of an irregular structure. The general arrangement of rafters shown in the larger drawing. Now we can draw in the last hip to complete the roof. The point at which all the rafters are attached to.
The hip and valley factor is a number that is multiplied by the actual run horizontal distance of a common rafter to determine the length of a hip or valley rafter. Discover the 36 different types of roofs for a house. Right elevation of roof plan shown in fig. It is sometimes also referred to as a dutch gable roof precisely because it contains both roof style features.
504 chapter 18 hip valley jack rafters. Now draw the centerlines for all rectangles that are formed inside. Such buildings may have more than four hips in the roofs and they form valleys at the inside corners. Hip and valley roof framing is no so complex as compared to hip roof framing procedures.
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.