One of the most important parts of a nightclub build is the cooling design. You don't want the club to get overheated, which is a big concern when you have crowds and a lot of people dancing in close proximity to each other. All of that body heat can accumulate and lead to a rise in temperature. Not only will this make the place uncomfortable, it will create a dangerous situation where people can overheat and get sick. You don't want to have to deal with people fainting on the middle of the dance floor. It opens you up to lawsuits, and will also give your club a bad rep.
Rooftop Exhaust Fans To Remove Heat
One important thing to integrate into the club's design is an exhaust fan. These are similar to the ones you see in restaurant kitchens. They pull out the heat from the main space and vent it out the ceiling and out into the air. You can position the fans near the spots in the club that have the highest density of people (typically the dance floor areas). You will have to speak with the HVAC company about the venting system. The cool thing about running a nightclub is that you don't have to worry as much about the aesthetics of the exhaust fan box as you might in a restaurant. Many clubs embrace an industrial design, so the visible venting system can actually add to the ambiance.
Powerful HVAC Unit With Concealed Piping
A venting fan is a great thing to use during the winter or fall, but during the spring and summer season, you will need a more powerful cooling setup. The fan should be used in conjunction with forced cold air from a powerful HVAC unit. You want cold air to be spread around the club, and it's helpful to have multiple spots for the air to enter the space. You don't want to have the cold air all blasting into the space from one spot. Ideally, the air should be spread around different locations. What you will want to do is have the HVAC installers conceal the piping.
If your club doesn't have the setup where you can run the piping behind the walls (perhaps it's a concrete build) then you will want to discuss concealment options with a piping company like Ragan Mechanical Inc. There are ways to run the piping along the walls and ceilings and have them be very discreet. The added benefit of concealing the piping behind frame-outs using drywall or some other design is that it protects the pipes from damage (an errant flying bottle during a wild fight, for instance) and adds to the insulation factor.