A seal affixed to the lower edge of an exterior door, typically made of rubber, silicone, felt, or foam, minimizes drafts, moisture infiltration, and the entry of insects and pests. Different materials offer varying levels of durability and effectiveness against the elements.
Effective door seals play a vital role in maintaining comfortable indoor temperatures, reducing energy consumption, and preventing damage caused by moisture. Historically, simple materials like felt or fabric were used, but advancements in materials science have led to more resilient and effective solutions. These improvements offer better insulation, sound dampening, and protection against harsh weather conditions.