how i did it
when you get a huge ice storm or wet melting snow
it creates ice at the edge which slowly builds up until
it wants to expand backwards>>>
and so does the melt-water
eventually finding a way in....
so, i bit the bullet and bought a 50' section of heating cable
to simply plug in when those conditions prevail so the ice cannot
build up there .....because it will be melted away
it zig zags across the roof and is very simple to install
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