We still need to get on our roof several times a year and clean off the screens. Mold grows in the mesh and prevents water from going in and fir needles stick into the screens.
Here is a video to show you. Doesn't take much to plug the water flow and this is the high flow mesh.
Their story about never having to go on the roof is complete malarkey. So expensive, would have saved money to have gutter professionally cleaned once a year vs the thousands we spent to have this system.
Product or Service Mentioned: Leaffilter North Filter.
Reason of review: Bad quality.