The phrase “out of sight, out of mind” may as cliché as the day is long, but when HVAC contractors were asked to share their maintenance tips for rooftop units, the overused expression popped up again and again as they described how most building owners treat their rooftop HVAC equipment.

It’s time again for the annual Cooling Showcase. The intent is to help contractors prepare for this busy period by doing the research that will help them distinguish between brands.

With building owners and managers looking to wring savings from every square foot of space, manufacturers have introduced a wide array of advanced energy-efficient technologies that are designed to lower utility bills without compromising comfort.