Detail Hip And Valley Roof Framing

Not shown are the hip and valley rafters needed to tie the roof together where the rafters are framed at an angle to each other.

Detail hip and valley roof framing.

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. It is the form most commonly used by. An example of each is shown in figure 2 1. Now draw the centerlines for all rectangles that are formed inside.

Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. The rise or height of the roof at its peak is the altitude of the triangle. The function of each component is. In a rafter roof all of these components are required to provide a stable 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. 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. Now outline the biggest rectangle inside the building layout. Prescriptive roof consisting of the rafters a ridge board ceiling joists and collar ties.

Here roofs are constructed with an angle of 90 degrees. Trussed valley set detail no sheathing continuous 2x4 sp no 2 attached to the roof 146 basic 160 ultimate mph wind speed. Hip and valley roof framing is no so complex as compared to hip roof framing procedures. Common types of roofs and basic framing terms.

Attach 4 6 centering rafters and lift the ridge beam into place. Tie down fixings tie down fixings are used to resist uplift and shear forces lateral loads in floor framing wall framing and roof framing. And the line length measurement from the roof peak to the building wall is the hypotenuse. 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.

The rafters carry the applied loads to the exterior walls. First of all you need to design the layout of building. The run or half the building span is the base of the triangle. Gable a gable roof has a ridge at the center and slopes in two directions.

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