Gutter guards are protective covers or inserts designed to create a barrier that prevents leaves, sticks, and other debris from entering the gutters, while still allowing water to flow freely.
Foam inserts fit directly into gutters and block debris while allowing water to pass through. They're adaptable to various gutter types but require periodic cleaning. These rely on surface tension ...
There are all types of gutter guards. Good ones keep your gutters clean and can eliminate flooding and damage to your home. But Consumer Reports' tests find some don’t work well.