Seals designed specifically for double-hinged exterior doors enhance energy efficiency by minimizing air leaks between the door panels and the frame. These narrow pieces, typically made of rubber, foam, felt, or silicone, are strategically placed along the edges of the door panels and frame to create a tight barrier against drafts, moisture, and insects.
Effective sealing around exterior doors translates directly to lower energy consumption, leading to reduced heating and cooling costs. A well-sealed home is more comfortable, experiences less noise infiltration, and offers better protection against dust and pests. Historically, simple felt or fabric strips were used, but modern materials and designs have vastly improved performance and durability. This translates to significant long-term savings and improved indoor environmental quality.