ducting in roof cavity 2

https://theretrofitductedairsite.clarionvale.com/posts/how-to-retrofit-ducted-air-conditioning-in-an-existing-home

Running ducting through a roof cavity is a smart way to hide HVAC pipes and wires, keeping your living space clean. We snake the flexible ducts between joists, ensuring good airflow and insulation gaps are left for energy efficiency. It's a neat, out-of-sight solution for heating and cooling.