These types of systems utilize a fine metallic mesh of either 304 SS or 316 SS supported by plastic, aluminum, sheet metal or metal extrusions. Support configuration, wire diameter and mesh size and quality are contributing factors to the efficiency of these units.
This system is made from re-cycled plastic and has one, two or three parallel slots relying on surface tension for its effectiveness.
This system has been around the longest dating back to 1908. It uses a rounded nose sheet metal panel positioned over the gutter usually held in place with plastic brackets or small metal clips depending on the diameter of the curve.
These are usually constructed of re-cycled plastic containing thin parallel slits in the same configuration as the plastic reverse curve type. They usually are fitted to the inside of the gutter lip.
This is the most common type of gutter protection. It consists of expanded metal similar to chicken wire, only coarser. It usually comes in aluminum, but galvanized steel is still available.
This type of screen uses different hole configurations and sizes. Round, diamond shaped, triangular and square are often seen in this group. Some have a synthetic mesh covering the holes.
This is not a cover, but an insert that is placed into the gutter. It comes in different densities including one that is in the shape of a huge pipe cleaner.