An Exterior Insulation Finishing System (EIFS) can be defined as an energy efficient thermal wrapping applied to the exterior surfaces of a building. This thermal wrapping is then finished with a long-life, decorative and protective coating system.

lightweight autoclaved aerated concrete (AAC). It is completely cured, inert and stable form of calcium silicate hydrate. It is a structural material, approximately one quarter the weight of conventional concrete, composed of minute cells which give the material lightweight, high thermal insulation, fire resistant and sound insulation properties.