GutterShutter completley encloses and protects. There are no vertical openings for water or clogging debris to enter, and no screens, iinserts or filters to clog. Rainwater flows over and around the nose of the GutterShutter by the simple physical law of water surface tension. Its just like the way water clings to the side of a glass when its poured. The GutterShutter System has more surface tension than any other system. This will afford you the peace of mind that comes with knowing you no longer will bw putting anyones health or safety at risk that comes with climbing the ladder to clean your gutters. Your fascia is no longer at risk to additional rotting as the exclusive High Back system ensures your board is covered in aluminium adding to GutterShutters water management features.