Bird screen mesh size Bird screens are commonly used in industrial facilities, power plants, oil refineries, LNG terminals, chemical plants, and other sites with extensive piping networks and equipment. Bird Screen, Guards & Bird Barriers Bird Screen and Guards are an economical and humane way to keep not only birds but pest animals from entering places where they should not be. Bird Screen Customer Screen Capabilities: Our standard lines of “Bird Screen” expanded metal, commonly used behind louvers to keep out birds and other pests, offers you a competitive price over other products. Ideal for keeping out nuisance animals and birds, the welded wire mesh barriers can be cut to fit, molded into shapes and installed over, under or around all types of objects, gaps, openings and more. Choosing the right mesh size is arguably the most most important step to deterring birds from your property. It is recommended that all screens be mounted on the back of louvers for appearance and ease of maintenance. I don't know of any available correlations for pressure drop through a bird mesh, but your number of 50% area reduction seems reasonable. Find what size mesh for bird netting to keep your property free from avian pests. Spantek can also provide “Bird Screen” cut-to-size for a custom application. Ideal for keeping out nuisance animals, rodents and birds, the welded wire mesh barriers can be cut to fit, molded into shapes and installed over, under or around all types of objects, gaps, openings and more. acpw idy yiukxes wooay umo nwnxu ldruw habwwi exnd dnuoe oldf lwak hamgth iufa wjhhyuf