I'm worried that our metal roof has too much of an overhang. It seems like it keeps dropping in every storm we have so I need to know what the overhang on a metal roof needs to be? Any idea?
Answered: 2019-12-04 06:50:54
You'll have some differences based on the type of metal roof and what was needed for your overhang but on average a typical metal roof overhang may be 2 to 4 inches. Sometimes the overhang is less depending on the drip edge flashing which helps prevent water from getting under your roof and onto the wood underneath. Sometimes metal is installed on rafters through strip sheathing rather than the solid decking used under other materials so that effects the overhang too. description
Remember metals overhangs should began at the gable end of the roof opposite the most common rain bearing wind. That way the wind won't be able to drive the rain under the metal panel laps. You want to make sure the panels are properly side lapped to ensure a water tight seal and they should overhang into the gutters by 1 to 1.5 inches. If installing the metal roof on a non gutter application you can overhang the panel up to 3 inches. description
It can be confusing sometimes because usually you want your metal roofing at least an inch -- at the rakes as well as the eaves and won't need a drip edge. Other times, there are metal roofing manufacturers who make metal trim for rakes because it looks a bit neater. But in all cases you need to follow the manufacturer's instructions to keep yourself out of the wind and rain. description
Are you using an edge metal and if so what's the pitch of your roof? If your wicking is on a low enough slope it will run up the underside of roofing can get behind facia. Usually you without drip edge you have at least 2″,with the drip edge even. A lot of overhangs vary because the facia is straight so they run metal past so it looks straight. Esthetics means everything. description
It should be around 1 inch but only with certain types of metal and gables. You want to begin at the gable end of the roof with a low slop application. On an end lap make sure you have some overlap and by at least nine inches. Then you want to go out at least an inch past the gable fascia unless you have a trim and then it should be flush. description
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