Measure the inner width of the gutter so you can recreate the shape when you place the cap. Once you have the desired shape, do a fit test on the hole and make sure that it lies flat on the surface of the gutter. I suggest you use Selley's Grey Storm 290 ml waterproof sealer for gutters and roofs to stick the mini sheet to the surface of the gutter.
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What gutter guards are best for heavy rain?
We recommend Gutter Guards America to homeowners who are looking for a reliable installer of gutter protectors with secure warranties. Those who don't want the gutter guards to be seen from below can consider the 5-inch aluminum A-M gutter protector.
Is it better to not have gutter guards?
When using gutter protectors, you'll notice that, over time, these protectors won't help keep dirt on the roof. In the worst case scenario, gutter protectors could cause irreparable roof damage and would cost thousands of dollars to replace.
