It blocks leaves from entering but easily allows water through.
Best way to keep leaves out of your gutters.
Small debris sometimes gets in but usually washes out the downspouts without a problem.
With surface tension gutter covers water clings to the rounded nose of the guard and flows into the gutter while leaves and other debris fall off over the edge.
The answer to this is going to be to install gutter guards.
These guards range in price and usefulness.
If you have a lot of trees on your property then another good way to prevent a lot of leaves in your gutters is to regularly trim your trees.
They must be brushed off from time to time or the debris that sits on them will disintegrate and eventually clog the foam or wire.
The theory is similar to flat screens described above in that the insert will let water through and keep debris out of the gutter the top of these inserts are essentially flat when installed into a gutter.
Surface tension guards work very well with leaves and other large debris.
Surface tension from the curved lid channels water into the holes without taking leaves with it.
Your job brushing aside any accumulated debris from time to time to prevent runoff from cascading over the face of the gutter.
This gutter insert is a plastic mesh foam filter.
Gutter guards come in different materials and designs but all hold a common purpose keep the leaves and debris out of your gutters.
It installs under the gutter ferrules to protect it from blowing away in high winds.
If you live in house that has any trees around it gutter guards are going to be a great investment.