Expanded Metal Mesh for leaf gutter guards Introduction Expanded metal is a metal sheet with openings in the area. They are formed by cuts in the transverse direction and at the same time stretching in length without loss of material. Expanded metal guards is mainly used to prevent the leaves, etc. from falling down into the ditch. Size & Configurations Plate thickness from 0.5mm to 3.0mm Shape is diamond hole Material Stainless steel Carbon steel Feature Good material, smooth surface and fine workmanship Various types, light weight and easy to cut Easy to install and without opening Beautiful appearance, affordable, corrosion resistance and long service life Application Fire Protection Leaf Shield is the ultimate protection from bush fire ember attack. Birds and Pests Leaf Shield gutter protection creates a secure barrier between your roof and gutter. The roof stays permanently sealed so that birds and pest can’t enter your roof.