Products Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more. Roof Curbs and RailsConventional CurbsUPP-1 - Pipe Portal, 1 connectionUPP-4 - Pipe Portal, 4 connectionsUCC-5 - Self-Flashing, Non-Insulated Curb for Insulating in the fieldTwo Piece Curbs - Two Piece Curbs (for large equipment removable through roof).UCC-Vented - Vented Conventional Roof CurbUCC-Vertical Pipe Curb - Conventional Roof Curb with Pipe FlashingUCC-3 - Self-Flashing, Insulated Curb for Single Ply EPDM RoofUCC-2 - Integral Cant, Insulated Curb for non-Insulated Roof DeckUCC-1 - Raised Cant, Insulated Curb for Built-up Insulated RoofInsulated Curb Cover - Insulated Curb CoverSquare to Round Cover - Square to Round CoverConventional RailsCurb AdaptersMetal Building CurbsMetal Building Rails 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