
After lots of google searches, neighbors etc, it seems there can't be a great/perfect solution to the leaf in gutter problem. At least not insanely expensive. So, many years ago, before my house was walled up and new gutters installed, I used this and it worked fine. It matched my old gutter perfectly, extending from the outside edge of the gutter to the lower roofline. We don't have pines, but we do have oaks and maples with these little spinning seeds. This stuff kept [MOST OF THEM*] off the gutters and when it dried it seemed to blow away [EXCEPT some seeds*]. This material didn't work with my new white gutters, but I found a good solution. We tuck the outside edge into HD's "1-1/2" White Vinyl Trim, tuck the inside edge under the roof, and screw the white trim to each other gutter (see photo). It works well so far, looks good and is expected to continue to work well. Very low price per foot. . No big deal, just moved the net back a foot or so and bagged the seeds. Install one of those $2 gutter guards/filters and plan on cleaning it once or twice a year.

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