Typical Gable Roof Framing Diagram

Common types of roofs and basic framing terms.

Typical gable roof framing diagram.

Framing a gable roof building a gable with barge end purlin struts and collar ties. For more information about roofs check out our types of roofs article and diagrams. The run or half the building span is the base of the triangle. An example of each is shown in figure 2 1.

The rise or height of the roof at its peak is the altitude of the triangle. And the line length measurement from the roof peak to the building wall is the hypotenuse. 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. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.

Ladder trusses are made up using four noggins bridging at each corner to support a rafter outside the building. It is the form most commonly used by. Typical gable roof note. Below we created a very helpful custom diagram that illustrates the various features and layers of a typical roof.

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. Like many aspects of a home a roof is fairly complex. There are quite a few parts of a roof on a home including different layers and features. 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.

Gable a gable roof has a ridge at the center and slopes in two directions. The typical gable roof diagram above shows the r length measured from the outside wall to the middle of the ridge beam.