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) Balancing / Regulating Dampers UV Products Iris Dampers Drop Plenum Diffusers 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