An opening on a building’s uppermost covering allows external atmosphere to enter the structure. This entry point is frequently incorporated into a building’s ventilation system, supplying the system with a consistent source of outside atmosphere. An example is seen in modern residential construction where such an entry point is often connected directly to an attic space, providing a source of ventilation for the area.
The implementation of an atmospheric entry point on a buildings overhead covering offers several benefits, including improved indoor air quality and reduced energy consumption. By allowing a controlled influx of external atmosphere, the concentration of indoor pollutants is diminished, creating a healthier environment. Historically, these features have evolved from simple, passive vents to sophisticated, engineered systems that are integrated with HVAC systems for optimal performance.