Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Louvers - Wind-Driven Rain Louvers: Model:D-HV-4 4" Deep Dual Blade Wind Driven Rain Louver APPLICATION 4" Deep Aluminum High Performance Wind Driven Rain Louver. Class A wind driven rain data includes a minimum water penetration effectiveness of 99.1% at 974 fpm core velocity. D-HV-4 DOCUMENTS - Submittal Sheet - D-HV-4 CAD Details - D-HV-4 BIM (REVIT) - CSI 3-PART SPEC. - Louver Color Selector - Louver Installation Instructions - Equipment Screen Support System - Louver Details - Louver Shapes - Effects of Birdscreen UV Products Iris Dampers Drop Plenum Diffusers Balancing / Regulating Dampers Louvers Dampers UL Listed Dampers Roof Curbs and Rails Sunshades Architectural Grilles Ventilators Doors Actuators Fans Air Measuring Products VAV Terminals Security Bars & Grilles Plenums Duct Take-Offs Custom Work Manufacturer Cross Referencing System View Now Previous Next