What is the purpose of a garage door seal retainer and how does it contribute to the functionality of a garage door?

A garage door seal retainer is a component that holds the weather seal in place at the bottom of a garage door. It helps to prevent water, dirt, and pests from entering the garage, improving insulation and protecting the contents inside. The retainer contributes to the functionality of the garage door by creating a barrier that enhances the door's efficiency and overall performance.