Look across the commercial landscape, and it’s almost guaranteed that you’ll see the familiar packaged rooftop “box” on countless rooftops — malls, retail spaces, schools, and office buildings.
Rooftop units have come a long way in recent years. They now contain more sophisticated controls, improved serviceability features, and unique ways to address indoor air quality (IAQ) issues. But even the best-made rooftop can’t keep soldiering on if routine maintenance is not performed regularly.