Structural support for a rooftop unit is an essential component of any commercial building’s design. It provides the foundation necessary to install, operate, maintain and safely operate the unit. A strong structural support system ensures that the rooftop unit does not become too top heavy or dismantled by unexpected loads derived from any number of sources including wind, snow and seismic activity. But what exactly is the official business definition of structural support for a rooftop unit? In this article, we’ll explore the nuances of properly engineered structural support, including standard building codes, regulations, and recommendations in order to provide assurance that your rooftop unit systems remain safe and secure.