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