How Much Overhang On Metal Roof For Gutters

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

How much overhang on metal roof for gutters.

A typical metal roof overhang may be 2 to 4 inches or even less. Angle or more below a straight run off the roof angle. The length of the overhang itself commonly ranges from 2 to 5 inches. Here phil explains how much overhang a roof should have at the gutter.

If you have less than 2 overhang on the edge of your roof you will want to be down even more. About 1 inch just enough to assure the water goes into the gutter and not behind it. You may find other styles and sizes of drip edges in the store including j channel drip edges but these are intended for windows doors and other applications. The net resultant of each is the same and perfect for gutters if they are installed.

This old house recommends that gutters should slope inch for every 10 feet toward a downspout this keeps water moving away from your roof. Metal roofing is a unique trend in roofing and this guide will walk you through the steps including how to install metal roofing over shingles. Add a gutter cover for your gutters. Greater overhang becomes a point of leverage for gusts of wind to rip off your roofing.

On page 365 the overhang is beyond a fascia board buildings with eave overhangs. Ice dams can also occur on metal roofs and can cause damage. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. And when mounting them it is crucial to try and keep them at least 5 deg.

This will allow the snow to slide over the gutters while allowing the rain to drop down into the gutters.