Standard Roof Overhang Length

16 foot and taller 24 inch overhangs.

Standard roof overhang length.

This can make extensive roof overhangs more trouble than they are worth in all but the harshest climates. We can also build a cantilever for the overhang which is where the bottom chord of the truss continues beyond the wall. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. But roof overhangs are a great system to protect houses 3 stories and under.

Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. 12 to 16 foot eaves 18 inch overhangs. If the overhang exceeds 2 5 feet we will need to use a larger top chord for the overhang typically a 2 6 top chord for the truss. A shed overhang is an easy and effective way to protect your shed.

The ideal spec for roof overhangs the size of the roof overhang depends on the property. For example a slope of 6 12 means for every 12 inches of horizontal distance the slope of the roof will rise 6 inches vertically. The rise will be the elevation change over the 12 inches. That said overhangs can extend as far as 2 without the need for external supports.

However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes. This will keep rain away from your shed. The run or the base number is 12 inches. This will protect a roof from most types of damage.

Two feet is the general maximum length for a typical roof overhang. The exceptions include enclosed overhangs on open sidewalls i do not like the look and they become a nesting place for small flying critters and birds. A typical metal roof overhang may be 2 to 4 inches or even less. On very tall buildings there are hardly any benefits of roof overhangs as the surface areas of the walls are so high.

You can add 3 to 5 inches to the top.