Gable Roof Eave Detail

If a sprocketted or bell cast detail is used then eaves courses should be no lower than the minimum recommended roof pitch.

Gable roof eave detail.

Fix a plywood board or proprietary tray to provide continuous support to underlay to prevent water retaining troughs. Do not set it to match the main roof slope of the house. Most gable roofs also have a rake cornice or rake extension formed on the gable ends. Many different designs can be created by variations in roof pitch gable end treatment mouldings and dimensions.

The main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall. Architectural details direct 903 356 2158. Remember the roof on the return is there just to shed a small amount of water. This first installment of a two part series focuses on eaves that do not return onto the gable.

Running trim can be used along the eaves of your gable either below a gable decoration or by themselves. The final step is putting the roof on the eave and addressing what happens in the gable itself. This is created by extending the rafters out past the building ends. Refer to my architectural roof types blog.

The three primary variables to consider when designing the eaves for a gable roof are the width of the gable trim the projection of the eaves and the details at the corner of the gable ends. Typically the same detail throughout the country typical eave section gable end elevation b. Boxed eave detail works for both hip and gable roofs. This is the portion of the roof that protrudes beyond the side of a house or building.

Fix a rafter spacer tray to provide a clear air path between underlay and insulation. If running trim is going to be used. A gable roof has a cornice along the side walls formed at the rafter ends. In the gable the frieze can either match the horizontal frieze on the rest of the building or it can be reduced one step in dimensional lumber.

A slight return just enough to keep water from pooling is all you need. To determine exactly what the rafter tail will look like i always make a full size drawing on a scrap of plywood of all the eaves elements including framing and finish materials see illustration above. The 12 12 roof pitch is also known as a square pitch roof since a 90 degree angle is formed at the peak of such roofs. Select eave detail overhangs typically range from 9 to 18 in depth.

An eave is defined as the edge of the roof that overhangs the face of a wall. In contrast a gable or rake is the overhang of a building that occurs on the side that is topped by a gable roof.