How Far Should On Overhang Go On Roof

Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.

How far should on overhang go on roof.

A shed overhang is an easy and effective way to protect your shed. An overhang must extend at least 3 4 in 1 9 cm past a roof s edge to reach the gutter. 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. This will keep rain away from your shed.

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. A typical metal roof overhang may be 2 to 4 inches or even less. Flashing is a solid solution. Here phil explains how much overhang a roof should have at the gutter.

Overhangs can vary from a few inches to a few feet depending on preference. That said overhangs can extend as far as 2 without the need for external supports. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. Too much overhang and the shingles could blow off in high winds.

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

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. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. Two feet is the general maximum length for a typical roof overhang.

To create a cantilever properly you will need to know plenty about physics like torque and rotational equilibrium.