Sheet Metal Roof Overhang

To provide a drip edge allow an overhang of 1 to 2 inches at the eave.

Sheet metal roof overhang.

Although it does not look like much this component is made to have great structural integrity. This is an obvious sign that there is something wrong with the dimensions of the roof overhang framing. On the other hand a maximum is around 8 11 inches 20 30cm. A typical metal roof overhang may be 2 to 4 inches or even less.

Keep in mind that the metal panels will not just cover the roof they will also hang off the edge. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. As a rule of thumb this overhang should be at least of an inch. There is a small size metal rim facing outwards and away from the roof fascia.

At the gable edge use a gable or sidewall flashing. Place corner pieces where panels will meet bends at the edge of the roofing. Homes with sheds can have these problems too. Secure the sheets into place with screws.

Drip edge is a metal flashing that tends to overhang the sides of a roof. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. The trim and roofing sheet should be fastened every 12 to 24 inches along the gable edge. Once the first sheet is in place you need to install the remainder of the lowest row of corrugated metal roofing.

This will keep weather out prevent lifting in high winds and provide a neat fin ished appearance. If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch. If it s longer than this external supports are usually required. A standard minimum for a sheet of metal placed on the roof so that it overhangs the edge is at least of an inch to 1 inch 2 2 5cm.

The sheets should overlap by at least four inches add a bead of caulk where they overlap and at the other end of the building ensure there s an overhang of two inches. If you tour suburban neighborhoods with older homes you can often see examples of housing exteriors where panels appear to be coming off the house.