Standard Length Of A Roof Overhang

The siding underneath the overhang is known as the soffit.

Standard length of a roof overhang.

Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. Because this style of a shed has a flat roof it can facilitate a wider overhang which is ideal for storage. Most homes have an overhang however length varies greatly depending on the architectural style of the roof with slate roofs having longer overhangs typically.

Overhangs are common in most house designs providing protection against both wind and rain. If the overhang extends beyond 24 inches say to 30 inches then a 2 6 top chord for the tail section will be required to handle the additional overhang. By precutting all of the roof purlins to length and making any necessary adjustments in the last bay of the roof it should be possible to easily be within 1 16 th inch plus or minus. This is particularly true in geographical regions where high winds are a common issue.

At the rakes however with a nod to yankee frugality and clean modern lines we kept the roof trim as close to flush as practical while still allowing for a rain screen channel. Make the main roof wide enough to protect all windows and doors. Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction. For example 4 12.

The diagonal measures are actually relatively easy to get equal as it takes very little effort to shrink a long diagonal by several inches. However there are. Under the overhang is a structure known as the soffit. With a flat shed roof the roof simply extends past the wall plate to provide an overhang.

The size of the roof overhang you choose depends largely on the style of your shed s roof. The roof overhang length must be properly engineered to resist wind uplift. The length of the overhang depends primarily on the climate. With that in mind we kept a roof overhang at the eaves as it provides a nice shadow line and protects the second floor windows from a bit of the summer sun.

A typical metal roof overhang may be 2 to 4 inches or even less. The vertical rise of the top chord per 12 horizontal inches is the roof pitch or slope.