A barrier against the elements, fitted around the edges of a patio access, prevents drafts, moisture, and insects from entering a home. Typically made of materials like rubber, vinyl, felt, or foam, these barriers come in various forms, including compression strips, bulb seals, and door sweeps.
Effective perimeter insulation significantly enhances energy efficiency by minimizing air leakage, leading to lower heating and cooling costs. It also contributes to a more comfortable indoor environment by reducing drafts and noise infiltration. Over time, these barriers have evolved from simple felt strips to sophisticated, multi-layered designs incorporating advanced materials and engineering to maximize performance and durability. Proper installation and maintenance are essential for optimal effectiveness.