A bottom weather seal is a rubber or vinyl strip installed along the bottom edge of a garage door. Its primary function is to create a tight seal when the door is closed, preventing drafts, moisture, dust, and pests from entering the garage. Overhead doors, renowned for their durability and space-saving design, benefit immensely from an effective weather seal. Without it, the garage can become an entry point for unwanted water and air flow, leading to various issues.