| License Description |
Sheet metal work, the manufacturing, fabrication, assembling, handling, erection, installation, dismantling, alteration and repairing of all commercial duct or air exhaust systems, except for refrigeration and combustion units; installation of commercial fans, sheaves, belt guards, dampers, louvers, screens, registers, grilles, diffusers, sound traps, attenuators, mixing boxes and access doors in connection with duct or air exhaust systems, commercial and industrial architectural sheet metal watershed roof systems, except for roof coverings and associated metal flashing; the testing, adjusting and air-balancing of all air-handling equipment and ductwork installed during new or remodeling construction, the installation of commercial and industrial kitchen hoods, kitchen vents, bathroom exhaust vents and fans. |