Thin, flat pieces of metal, typically aluminum, stainless steel, or bronze, are affixed to door frames to seal the gap between the door and the frame. These barriers against the elements prevent drafts, moisture, and pests from entering a building. They are commonly found in residential and commercial structures.
Effective sealing provided by these metallic barriers significantly improves energy efficiency by reducing heat transfer, resulting in lower energy bills. Furthermore, they contribute to a quieter and more comfortable indoor environment by minimizing noise infiltration. Historically, simpler forms of these sealing methods have existed for centuries, evolving from rudimentary felt and fabric strips to the more durable and effective metal versions commonly used today. Their widespread adoption reflects an increasing awareness of energy conservation and building performance.
