The component affixed to the lowest edge of a specific type of entryway closure is designed to create a barrier against external elements. As an example, consider a flexible strip that is mounted to the lower portion of a hinged panel used for vehicular access, preventing water and debris from entering the enclosed space.
Its function is essential for maintaining the internal environment, offering benefits such as insulation, protection from pests, and prevention of water damage. Historically, simpler materials like rubber strips were used, but advancements have led to more durable and efficient synthetic polymers. This contributes to energy savings and extends the lifespan of the structure and its contents.