The rise or height of the roof at its peak is the altitude of the triangle.
Typical gable roof framing diagram.
The picture above shows the plan view of a gable roof.
Framing a gable roof building a gable with barge end purlin struts and collar ties.
There are quite a few parts of a roof on a home including different layers and features.
The rafter section diagram below typical of a shed or patio cover roof shows the r length measured from the outside wall to the outside face of the ridge beam.
It is the form most commonly used by.
Gable a gable roof has a ridge at the center and slopes in two directions.
That rafter outside forms the overhang for the barge boards to fix to and so the soffit boards and ventilation are continuous all the way around the structure.
An example of each is shown in figure 2 1.
For more information about roofs check out our types of roofs article and diagrams.
Typical gable roof note.
Ladder trusses are made up using four noggins bridging at each corner to support a rafter outside the building.
Common types of roofs and basic framing terms.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
The run or half the building span is the base of the triangle.
Like many aspects of a home a roof is fairly complex.
Below we created a very helpful custom diagram that illustrates the various features and layers of a typical roof.
The typical gable roof diagram above shows the r length measured from the outside wall to the middle of the ridge beam.
Gable roof framing calculator plan diagram with full dimensions for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length.