Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Roof Curbs and Rails - Conventional Curbs: Model:UCC-Vented Vented Conventional Roof Curb APPLICATION UCC-Vented is a one-piece vented curb with 18ga. Galvanized steel shell and baseplate; available in UCC-1, 2, 3 & 5 models. UCC-VENTED DOCUMENTS - Submittal Sheet - UCC-Vented BIM (REVIT) 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