A protective element is often installed atop the vertical exhaust pipe of barbecue restaurants to prevent the entry of rain, snow, debris, and animals. These structures, typically made of metal, shield the internal flue system from external elements. For example, a simple cap might deflect precipitation, while a more elaborate design could include mesh screening to keep out birds and insects.
The implementation of these protective measures offers several advantages. Maintaining a clean and unobstructed flue system is crucial for optimal smoke ventilation and the efficient operation of cooking equipment. Furthermore, these components can extend the lifespan of the exhaust infrastructure by mitigating corrosion and physical damage caused by exposure to the elements. Historically, such provisions have evolved from simple covers to engineered solutions designed to meet specific environmental and operational needs.