To 18 in depending on the style of the building.
Gable roof overhang framing details.
In designing the overhanging part of a.
The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle.
And the line length measurement from the roof peak to the building wall is the hypotenuse.
The construction of a roof overhang is one important way that homeowners can protect the exterior of their home and preserve its value.
After the gable is framed lookouts extend from the first rafter inside the gable wall out over the plates to support the overhanging barge rafter.
Of the many ways that gable end overhangs are built the two most common ways are the use of ladder details and outriggers ladder details are usually adequate if the overhang is less than about 8 inches although they are frequently used for longer overhangs.
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.
If you re a little unsure of your rough framing or roofing skills hire a carpenter to help with this phase of the roof dormer project.
Thick and the overhang from the side wall set between 12 in.
Framing a dropped gable wall one of the keys to framing the rake with my system is building a dropped gable end wall the top of which is 3 1 2 inches below the tops of the rafters.
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.
Avoid gable ends that are over 8 in.
They can also include certain architectural features that make overhangs more than just functional parts of the home.
Gable end roof designs gable end roof detail gable end roof diagram gable end roof edge protection caps gable end roof edging gable end roof extension.
The biggest problems with gable end overhang strength occur if your roof overhang is greater than about 12 inches.
The run or half the building span is the base of the triangle.
Framing a gable roof building a gable with barge end purlin struts and collar ties.
From the floor to the peak and set back from the front wall of the house about 2 ft.
When designing a gable end eave without a return the dimensions to look at are the width of the trim set between 6 in.
Wide especially when the eave overhang is less than 12 in.
The rise or height of the roof at its peak is the altitude of the triangle.