PROSOCO Cat 5 Rain Screen

FLUID-APPLIED AIR AND WATER-RESISTIVE BARRIER FOR RAIN SCREEN CONSTRUCTION Cat 5 rain screen is a high-performance, fluid-applied membrane that delivers exceptional air and water protection behind open-jointed or vented rain screen cladding. Applied with a sprayer or roller, it forms a seamless, elastomeric barrier that resists extreme weather—including conditions equivalent to a Category 5 hurricane. Cat 5 Rain Screen is ideal for above-grade wall assemblies and performs reliably on dry or damp substrates, helping to eliminate weather-related construction delays. KEY FEATURES Strong durable protection – withstands extreme weather, including 155-mph winds Can be sprayed or rolled – speeds up installation and ensures full coverage Bonds to damp substrates – installs even in wet conditions without delay Creates a seamless membrane – no laps, gaps, or fastener penetrations Self-seals around fasteners – eliminates leaks and maintains performance Meets highest code & air tig