Normal Roof Overhang

An eave is the edge of the roof that overhangs the face of a wall and normally projects beyond the side of a building.

Normal roof overhang.

Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. 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. Additionally forming this needs to pay attention to the edge of your roof. That is their functional purpose.

Two feet is the general maximum length for a typical roof overhang. The roof overhang will be 36 inches at the eaves measured horizontally and 36 inches at the gable ends. However there is also an architectural purpose to them. 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 also help to frame windows on upper stories. Ways to frame the roof overhang framing the roof overhang is basically in line with the style and shape of your flooring. A typical metal roof overhang may be 2 to 4 inches or even less. As a rule there are two popular methods in framing it pant or flat roof overhang and gable roof overhang.