Cerrudo Services rehabilitated the ventilation system of a small arms firing range to disperse fumes and gunpowder away from individuals using the range. The scope of work included removal of the existing fans, controls and wiring. Downstream of the firing line a plywood ceiling was installed to facilitate proper air flow.
Four new rooftop air handling units were installed using a 90 foot crane to secure the units on roof curbs. The units were wired into a control panel with individual pole circuits for each unit. The fan control system was designed to stagger the start times of each unit in addition to being able to start each unit individually. Custom ductwork was manufactured to maximize air flow and minimize overhead obstruction in the firing range. Special flashing was designed to waterproof the roof penetrations.