How Far Should Metal Roof Overhang Gutters

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

How far should metal roof overhang gutters.

Mike the pole barn guru. Too little can allow water to seep into rake or fascia boards. The steel siding is 3 4 thick which leaves 1 1 2 to 1 3 4 of overhang past the siding after it is installed. About 1 inch just enough to assure the water goes into the gutter and not behind it.

Greater overhang becomes a point of leverage for gusts of wind to rip off your roofing. A typical metal roof overhang may be 2 to 4 inches or even less. You want the screws to be quite long with deep threads as they will be bearing the weight of the gutter. A rule of thumb is to have about two feet of spacing between gutter brackets.

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. The net resultant of each is the same and perfect for gutters if they are installed. Ice dams can also occur on metal roofs and can cause damage. Based on the length of your metal roofing decide how many gutter brackets you need and choose screws that are the correct size for the holes in the gutter brackets.

On page 365 the overhang is beyond a fascia board buildings with eave overhangs. This old house recommends that gutters should slope inch for every 10 feet toward a downspout this keeps water moving away from your roof. Add a gutter cover for your gutters. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.

Too much overhang and the shingles could blow off in high winds.