Like many aspects of a home a roof is fairly complex.

Typical gable roof framing diagram. The picture above shows the plan view of a gable roof ladder trusses are made up using four noggins bridging at each corner to support a rafter outside the building. Exterior roof sheathing serves the same purposes for roofing materials as wall sheathing does for walls. Framing a gable roof building a gable with barge end purlin struts and collar ties. It is simple in design economical to construct.

The roof truss structure and design is integral to roof structural integrity and shape. Below is the framing for a gabled roof. 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. Roof shape is one of the key factors in setting the architectural style of a house.

Gable a gable roof has a ridge at the center and slopes in two directions. Spaced wood sheathing is common for wood shingle roofs. For more information about roofs check out our types of roofs article and diagrams. The typical gable roof diagram above shows the r length measured from the outside wall to the middle of the ridge beam.

Common types of roofs and basic framing terms. Most contemporary roof sheathing is either plywood or oriented strand board osb panels. Roof framing can be quite complex depending upon the complexity of the roof s design. Hip a hipped roof has three four or more pitched planes depending on the shape of the house and all planes slope downwards from a ridge at the top of the 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. It is the form most commonly used by the navy. Roof shape also dictates how difficult and costly a roof will be to build and how it will serve the house. Many homes combine roof types on one roof.

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. 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. This article and series of illustrated diagrams shows you all the parts of a basic roof truss king truss and queen truss. After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors.

Their function is similar to that of a fascia board however it runs parallel to the rafters on an angle at the skillion end of a gable. Below we created a very helpful custom diagram that illustrates the various features and layers of a typical roof. This type of roof is the most popular in australia. There are many types of roof trusses as wall as many types of roofs more types than there are parts.

Barge boards are found on homes with a gabled roof. An example of each is shown in figure 2 1. It s quite common for example to see a hipped roof with gable dormers. A barge board disguises the rafters closest to the end of of a gable roof.

Hipped roofs often offer shady eaves and great strength which makes them good for high wind rated areas.

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