How Far Should On Overhang Go On Roof

If you have gutters but still suffer from water rolling down the sides of your home it s likely that your overhang isn t long enough.

How far should on overhang go on roof.

A shed overhang is an easy and effective way to protect your shed. To create a cantilever properly you will need to know plenty about physics like torque and rotational equilibrium. Flashing is a solid solution. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood.

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. Here phil explains how much overhang a roof should have at the gutter. Too little can allow water to seep into rake or fascia boards. This will protect a roof from most types of damage.

A typical metal roof overhang may be 2 to 4 inches or even less. However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. 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.

The edge of the shingles should hang over a roof between an inch and an inch and a half or between a half inch and three quarters of an inch if drip edge flashing is installed. Here phil explains how much overhang a roof should have at the gutter. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. This will keep rain away from your shed.

An overhang must extend at least 3 4 in 1 9 cm past a roof s edge to reach the gutter. Lengths of drip vary but typically it s sold in ten foot lengths 120. That said overhangs can extend as far as 2 without the need for external supports. You can add 3 to 5 inches to the top.

Overhangs can vary from a few inches to a few feet depending on preference.