Roof Overhang Length

Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood.

Roof overhang length.

The roof overhang will be 36 inches at the eaves measured horizontally and 36 inches at the gable ends. Overhangs can vary from a few inches to a few feet depending on preference. In moderate climates there is some damage of wood decay and a roof overhang is recommended. A shed overhang is an easy and effective way to protect your shed.

However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes. 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. This will keep rain away from your shed. That said overhangs can extend as far as 2 without the need for external supports.

Arid climates receive little rainfall that can cause roof decay and the least danger of decay through. A typical metal roof overhang may be 2 to 4 inches or even less. Though most overhang regardless because of discrepancies of the facia being straight so they run metal past to let it appear straight.