Gable a gable roof has a ridge at the center and slopes in two directions.
Detail hip and valley roof framing.
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.
An example of each is shown in figure 2 1.
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.
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.
Trussed valley set detail no sheathing continuous 2x4 sp no 2 attached to the roof 146 basic 160 ultimate mph wind speed.
The rise or height of the roof at its peak is the altitude of the triangle.
Like the hip rafter it extends diago nally from the top plate to the ridge.
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.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
Hip and valley roof framing is no so complex as compared to hip roof framing procedures.
First of all you need to design the layout of building.
In a rafter roof all of these components are required to provide a stable roof.
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The run or half the building span is the base of the triangle.
Common types of roofs and basic framing terms.
Now outline the biggest rectangle inside the building layout.
The function of each component is.
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.
Attach 4 6 centering rafters and lift the ridge beam into place.
The rafters carry the applied loads to the exterior walls.
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.
A valley rafterforms a depression in the roof instead of a hip.
Here roofs are constructed with an angle of 90 degrees.
It is the form most commonly used by.