How is flexible fiberglass duct insulation (temp wrap) typically applied?

Flexible fiberglass duct insulation, often referred to as temp wrap, is typically applied using non-contact adhesive and wire due to the nature of the materials and the installation process. This method allows the insulation to be secured firmly around the ductwork without compressing the fiberglass material, which is essential for maintaining its thermal performance. Non-contact adhesives create a bond that minimizes disturbance to the insulation's structure, preserving its effectiveness in thermal resistance.

The use of wire helps to ensure that the insulation stays in place securely as well, providing added stability. This combination is particularly useful in applications where traditional mechanical fasteners, like staples or screws, might not be effective or could damage the insulation.

This method contrasts with other application methods, which may not provide the same level of effectiveness or could compromise the integrity of the insulation. For example, staples and foil could create potential thermal bridging or damage the insulation surface, while spraying adhesive directly onto the surface might not ensure even coverage and could affect the insulation's performance.