Sealing substantial openings between a door and its frame presents a unique challenge. Specialized products designed to bridge these wider gaps and prevent drafts, moisture infiltration, and pest intrusion are essential. These products, often crafted from durable materials like dense foam, rubber, or felt, provide a robust barrier against the elements. For example, a thick foam strip with an adhesive backing can conform to irregular gaps and effectively block airflow.
Effective sealing against significant door gaps plays a vital role in maintaining comfortable indoor temperatures, reducing energy consumption, and preventing damage caused by moisture and pests. Historically, rudimentary methods like rolled-up fabric were used to fill gaps. Modern advancements in materials science and manufacturing have resulted in more effective and durable solutions, leading to significant improvements in building efficiency and comfort.