There are two types of roof overhangs two consider.
Gable end roof overhang.
In fact most high wind construction guides require outriggers for gable end ov erhangs greater than 12 inches.
In contrast a gable or rake is the overhang of a building that occurs on the side that is topped by a gable roof.
However for larger extensions you ll need to hire a professional to get up there and remove large portions of the roof before extending the overhang.
In this system the last truss or rafter is often made smaller than the rest so that the top chord of the truss or the rafter is 3 5 or 5 5 lower than the tops of the other trusses or rafters.
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.
Then load bearing roof beams fixed to the trusses are extended in the same way.
Wide especially when the eave overhang is less than 12 in.
Refer to my architectural roof types blog.
Inadequate nailing of the sheathing to supporting framing or inadequate connections of the framing at the rake edge that supports the roof.
Extending a gable roof can be tricky since it involves working on the roof but you may be able to do it yourself if you only need to add 1 2 2 inches 1 3 5 1 cm.
After that you should fix the cornice board to the end sides of the ridge and the load bearing beams.
An eave is defined as the edge of the roof that overhangs the face of a wall.
This can be from two causes.
Uplift of roof decking at the overhang the other common wind related failure at gable ends is uplift of the roof decking at the overhang.
Avoid gable ends that are over 8 in.
This is the portion of the roof that protrudes beyond the side of a house or building.
A rake overhang is created by extending the roof beyond the gables of your shed.
An eave is created by extending the slope of your roof beyond the walls of your shed.
You may want one or the other or both.
This will be most.
A rake is an overhang located on the gable end of your roof.
If the gable end overhang uses the ladder detail method of construction and the length of the overhang is greater than 8 inches to 12 inches you may be able to strengthen the connection of the overhang by installing from the attic inch diameter lag screws that are long enough to go through the gable truss or rafter through the wall sheathing and 1 1 2 inches into the inside framing member of the ladder framing.
When designing a gable end eave without a return the dimensions to look at are the width of the trim set between 6 in.
An eave overhang is located on the longer sides of the shed.
