How Far Should Metal Roof Hangover

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

How far should metal roof hangover.

Two feet is the general maximum length for a typical roof overhang. A typical metal roof overhang may be 2 to 4 inches or even less. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. A brow roof is a narrow roof attached to the wall at the level of the first floor ceiling.

They are essentially mini roofs designed to protect each storey of the home individually. Lengths of drip vary but typically it s sold in ten foot lengths 120. Brow roofs are found on multi storey homes. I am in the process of installing a metal roof on top of my existing roof.

I currently have put 1x4 s on the existing roof for the metal to sit on. Also i have a porch with a different pitch. This will protect a roof from most types of damage. Too much overhang and the shingles could blow off in high winds.

Overhangs can vary from a few inches to a few feet depending on preference. Gable end overhangs also known as rake overhangs extend all the way to the peak of the roof. It can be made of metal. 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.

Should i start from one side. 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. Too little can allow water to seep into rake or fascia boards. That said overhangs can extend as far as 2 without the need for external supports.

Though most overhang regardless because of discrepancies of the facia being straight so they run metal past to let it appear straight. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. There is a thing called wicking that if on a low enough slope will run up the underside of roofing and possible go up enough to get behind facia so usually without drip edge at least 2 with drip edge even. Hi folks just a couple questions before i screw something up majorly on my roof.