They give hot air somewhere to go Planned well, vaulted ceilings can create an escape route for rising hot air. The louvres in this living room vastly improve the home’s airflow in summer, while allowing in plenty of natural light all year round. Modern Living Room by Melocco and Moore Architects
(Windows around the perimeter and on the partition wall) Rustic Living Room Decoration with Inviting Ambiance: Grey Sofas Large Glass Windows High Ceiling Small Glass Table ~ jangrue.com Living Room Inspiration
The use of clerestory lighting is not only aesthetically appealing, but also works well with daylighting. With the use of a light shelf, or a white wall shown here, natural light is able to be bounced back further into a space.