What is nesting in the context of insulation?

Nesting, in the context of insulation, refers to the practice of applying layers of insulation in a manner where the seams of each layer align perfectly or are staggered for optimal thermal performance. This technique is essential because it helps to create a continuous thermal barrier, minimizing gaps that could potentially allow for heat loss. By ensuring that seams match or are staggered, the overall effectiveness of the insulation is enhanced, leading to improved energy efficiency and comfort in the space being insulated.

The other options might relate to insulation practices but do not capture the specific definition of nesting. Storing insulation materials involves managing inventory and logistics, while combining different insulation types refers to using various materials together, which can improve certain performance aspects but is not nesting. Using insulation in extreme climates addresses the adaptability of materials to conditions but, again, does not define nesting. Understanding how proper layering contributes to insulation efficacy is crucial for effective insulation installation.