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Old 06-16-2010, 12:29 PM   #1
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metal roof - curved roof


Our house is an older home with a 7/12 pitch at the peak but it flattens to about a 4/12 at the eaves. Would like to put on a metal roof of some kind but would like some suggestions on the way to go.

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Old 06-16-2010, 02:11 PM   #2
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metal roof - curved roof


pictures would help.
Metal roofs can be 'shaped' to fit, but I am not the guy to answer with specifics on how to do it or what the range of movement allows.
It likely depends on the profile and guage of steel.

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Old 06-16-2010, 06:42 PM   #3
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metal roof - curved roof


If on piece bending to the pitch break, then a very skilled tinner/sheet metal contractor would be needed. If a 2 piece panel is used, then an "Apron Flashing" also called a pitch break flashing would need to counter-flash the lower panel and slide under the upper panel.

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Old 06-18-2010, 06:49 AM   #4
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metal roof - curved roof


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Originally Posted by olderndirt View Post
Our house is an older home with a 7/12 pitch at the peak but it flattens to about a 4/12 at the eaves. Would like to put on a metal roof of some kind but would like some suggestions on the way to go.

Thanks
As mentioned above, an experienced tinner could run a true standing seam roof right through that pitch change. But, most pre-manufactured roofing systems (snap lock or exposed fastener) won't bend. The roof would have to be treated as two different sections with the 4/12 roof stopping at the transition point and an apron laid over the top of it (as mentioned above). The 7/12 roof would then start above the apron. Cosmetically, the apron creates a horizontal strip (probably 7" or so wide) at the pitch change. If not detailed properly, this is often the source of leaks. Not saying it can't be done properly, but I get called to repair snow related problems transition flashing areas fairly often.
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