Hip And Valley Roof Framing Plan

Part of a framing plan for a hip roof is shown infigure 18 3.

Hip and valley roof framing plan.

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. Now draw the centerlines for all rectangles that are formed inside. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. Hip and valley roof framing is no so complex as compared to hip roof framing procedures.

Minus ridge thickness to allow for ridge becoming pole plate roof peak will be slightly higher ridge thick must be same. Attach 4 6 centering rafters and lift the ridge beam into place. Transfers the load of the roof. Such buildings may have more than four hips in the roofs and they form valleys at the inside corners.

Parts of a roof the main structural parts of a roof are ceiling joists ridge board jack rafter hip rafter common rafters creeper rafters raking plates out riggers and noggings or last rafter overhang. A disadvantage of the hip roof is that it is more difficult to construct than a gable roof. Place the 4 6 common rafters in their designated positions along the 2 longest walls and nail them firmly to the wall with a nail gun. Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries.

A corner fireplace offers warmth throughout the shared spaces. The point at which all the rafters are attached to. Intersecting the intersecting roof consists of a gable and valley or hip and valley. A hip and valley roof may be part of an irregular structure.

The hip and valley factor varies according to the slope of the roof as shown in the table below. Remember that a line on the framing plan indicating a rafter represents the total run of the rafter but not its actual length. Divide the rise by the run the run is 12. 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.

Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results. Label and identify the parts of a roof framing plan. Here roofs are constructed with an angle of 90 degrees. The valley is formed where the two different sections of the roof meet generally.

First of all you need to design the layout of building. Parts of a roof a ridge board is a horizontal member of the roof frame. The first step in the process of erecting the hip roof is to get the ridge beam into place at the top of the roof. These hip rafters run at a 45 angle from each corner of the building to the ridge.

On a hip roof framing plan the lines that indicate the hip rafters ec ac kg and ig in figure 18 3 form 45 angles with the edges of the building.