more instructions needed

These are as great alternative. BUT...the general installation revolves around the amount of shingle that over hangs into the gutter area. The less, the easier and cleaner to install. I've found that trying to install these with shingle material overhanging results in having to crush the panels to fit and makes them visually unacceptable. So what I did was to "dome" each panel by slightly bending then from flat to dome shape by placing them over a 2" pipe and slightly bending each panel around the pipe. You may have to notch each panel slightly to clear the gutter supports. But the end result is great! The instructions are lousy and I ruined my first box because of them. But once I figured out what to do they came out as good as expected.

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