2026-03-25
As a self-contained, all-in-one HVAC unit mounted directly on a building’s roof, RTUs get rid of bulky indoor equipment and scattered parts. This complete guide breaks down everything you need to know about Rooftop Package Units — from basic definitions and how they work, to parts, types, core benefits, uses, selection tips, installation rules, maintenance steps, and buying advice — to help engineers, building managers, contractors, and project planners make smart, informed decisions.