A storm door is an exterior door designed to protect the main entry door from harsh weather conditions. It is typically made of durable materials like aluminum or fiberglass and features a glass or screen panel. Storm doors help improve energy efficiency by providing an extra layer of insulation, reducing drafts, and keeping out moisture. In addition to protection, storm doors enhance the aesthetic appeal of a home. They come in various styles and colors, allowing homeowners to choose a design that complements their main door. Many storm doors also include features like adjustable screens, allowing for ventilation while keeping insects out.