How Far Should On Overhang Go On Roof

Here phil explains how much overhang a roof should have at the gutter.

How far should on overhang go on roof. A typical metal roof overhang may be 2 to 4 inches or even less. 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 indicates the upper edge of the first row of roof sheathing leaving enough overhang that the subfascia and fascia will tuck neatly underneath when the time comes.

Lengths of drip vary but typically it s sold in ten foot lengths 120. Too little can allow water to seep into rake or fascia boards. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. Overhangs can vary from a few inches to a few feet depending on preference.

Two feet is the general maximum length for a typical roof overhang. Drip edge varies in dimensions but typically the flange that nails to the roof surface is about 2 5 wide and the vertical edge that directs roof runoff down and away is about 1 5 in depth. An overhang must extend at least 3 4 in 1 9 cm past a roof s edge to reach the gutter. Flashing is a solid solution.

Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. This will protect a roof from most types of damage. To create a cantilever properly you will need to know plenty about physics like torque and rotational equilibrium.

Too much overhang and the shingles could blow off in high winds. You can add 3 to 5 inches to the top. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. This will keep rain away from your shed.

A shed overhang is an easy and effective way to protect your shed.