Gable Roof Overhang

Head to your local construction supply store and purchase enough flashing to cover the sides of your overhang.

Gable roof overhang. The first step in how to build a wood awning is determining what size you want it to be. Then load bearing roof beams fixed to the trusses are extended in the same way. For the arrangement of the gable end overhang for the standard roof you lengthen the ridge beam beyond the facade for previously verified length using cut rafters. They also help to frame windows on upper stories.

You can measure the overhang s edge if you d like but it should be pretty easy to make an educated guess just by doubling the length of the wall underneath the roof. This can be from two causes. The roof overhang will be 36 inches at the eaves measured horizontally and 36 inches at the gable ends. An eave is the edge of the roof that overhangs the face of a wall and normally projects beyond the side of a building.

Inadequate nailing of the sheathing to supporting framing or inadequate connections of the framing at the rake edge that supports the roof. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. The biggest problems with gable end overhang strength occur if your roof overhang is greater than about 12 inches. Purchase enough drip edge flashing to cover the overhang.

Of the many ways that gable end overhangs are built the two most common ways are the use of ladder details and outriggers. Due to the steeper angle of gable roof the maximum width of the eaves is narrower than other shed styles. That is their functional purpose. After that you should fix the cornice board to the end sides of the ridge and the load bearing beams.

Eaves form the overhang to distribute water clear of the walls. There is a certain logic in extending the gable overhang further the higher you get as you mention but that complicates the roof and i don t like the look of it. A typical metal roof overhang may be 2 to 4 inches or even less. A rake on the gable end of the roof can be created with the construction of additional roof framing.

The other common wind related failure at gable ends is uplift of the roof decking at the overhang. For gabled roofs the roof rafters extending beyond the wall caps creating an angled roof overhang on the eaves.