Gutters for a metal roof

rexgDecember 30, 2008

I have a home with a metal roof that overhangs by about 3 inches. It has a 5/12 slope and I want to install a gutter that will handle the rainwater shed off it. I also need to install some type of gutter with a screen to handle a lot of leaves in the fall. Does anyone have any suggestions? I have contacted a couple of local gutter companies but they said their gutters would not work well with a metal roof with a 3 inch overhang, they said the rain would overshot the gutter. He said that metal roofs do not slow the rain down like a regular shingles and the 3 inch overhang was to much with a normal 5 inch gutter. He did suggest a commerical box style gutter at least 6-8 inches wide but I'm not sure that will look right. Any ideas?

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joed

You could trim the the overhang shorter.

    Bookmark   December 31, 2008 at 8:14AM
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mightyanvil

Use brackets to put the gutter in the right place. It's a good idea to separate the gutter from the roof edge anyway. It sounds like a half round would not have enough capacity so you might be stuck with a box gutter. The first step is to calculate the volume of water instead of guessing.

    Bookmark   December 31, 2008 at 9:32AM
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sombreuil_mongrel

They make gutter hangers that attach to the surface of the roof. They are either screwed on with washer-head screws, or the nails are soldered-over (or capped by soldered-on strips of metal). These only work where there is wood sheathing under the metal, and from your question its not perfectly clear that this is so.
Casey

    Bookmark   January 1, 2009 at 3:10PM
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mightyanvil

Hanging gutters are generally half-round and hold less water for a given width than box/K gutters. Check the volume needed first.

    Bookmark   January 2, 2009 at 8:13AM
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