Maximum Roof Rafter Overhang

Gable trusses are only dropped over the area of the building not the overhang.

Maximum roof rafter overhang.

Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. This will protect a roof from most types of damage. The construction of a roof overhang is one important way that homeowners can protect the exterior of their home and preserve its value. Two feet is the general maximum length for a typical roof overhang.

This calculator is to be used as an estimating tool only. A typical metal roof overhang may be 2 to 4 inches or even less. Input the rafter span on the flat eave overhang and pitch of the roof. A rake on the gable end of the roof can be created with the construction of additional roof framing.

Due to the steeper angle of gable roof the maximum width of the eaves is narrower than other shed styles. So the corner is supported by one 2 x4 located usually 2 to 4 ft in from the exterior wall and the rough fascias making for a weak spot you feel when you walk the roof. With a 3ft overhang that corner is going to be pretty soft. Rafter stock size calculator.

Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. In designing the overhanging part of a. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. They can also include certain architectural features that make overhangs more than just functional parts of the home.