This type of seal typically consists of two mating metal sections, often aluminum or stainless steel, designed to slide together and create a tight barrier against the elements. One common example is the H-shaped channel found on sliding glass doors, where one section is mounted on the fixed panel and the other on the moving door, meshing together when the door is closed.
Such seals play a crucial role in energy efficiency by minimizing air infiltration and exfiltration, reducing heating and cooling costs. They also offer superior protection against water intrusion, dust, and noise compared to simpler forms of weather protection. Historically, felt and brush-like materials were common, but advancements in materials science and manufacturing led to the development of more robust and effective metal options. These durable seals are designed for long-term performance, resisting wear and tear from repeated use and harsh environmental conditions.
