A multilayer insulation material is provided. The insulation material preferably includes a plurality of substantially air-impermeable material layers joined together, with at least one space being provided between a pair of adjacent material layers thereof. At least one layer of a foam material and/or aerogel material can be interposed between a pair of adjacent material layers. At least one reflective layer can be provided for inhibiting radiative heat transfer across the insulation material. In accordance with another aspect of the disclosure, a construction panel is provided, having a structural panel portion having predetermined material properties for performing a predetermined function, and a plurality of substantially air-impermeable material layers joined to the structural panel portion, at least one space being provided between a pair of adjacent material layers thereof.