What classification category does reflective insulation fall under?

Reflective insulation is classified as a rigid type of insulation because it typically comprises materials with a layered structure that can include reflective surfaces, such as aluminum foil, adhered to rigid substrates. This design helps in reflecting radiant heat rather than absorbing it, which is particularly useful in controlling thermal performance in buildings.

Rigid insulation boards are used in various applications, providing structural integrity and a stable shape, making them different from other forms like loose fill or flexible insulation. Loose fill insulation consists of granular materials that settle under their weight and typically conform to the space they fill, while flexible insulation includes batts or rolls made from fibrous materials that can be easily manipulated. Conventional insulation does not specifically categorize insulation types based on their structure or thermal properties but refers more generally to traditional insulating materials without focusing on their physical form.

In summary, reflective insulation’s structural properties and performance characteristics firmly place it within the rigid classification category.