Hot and cold aisle containment improves server room cooling by separating cold supply air from hot exhaust air, preventing thermal mixing, stabilizing server inlet temperatures and reducing energy consumption. Hot and cold aisle containment is one of the most effective strategies for improving cooling performance in modern server rooms. The modular system adapts to the individual requirements of the different rack systems. Imagine a smart, streamlined. The Cool Shield AirStrip is an expanding foam tape designed to prevent unwanted air loss from gaps in contained aisles, server rack rows and data center infrastructure. In this guide, we'll break down how hot aisle and cold aisle configurations.