Exterior Insulation and Finish Systems (EIFS) are multi-layered exterior wall systems that are used on both commercial buildings and homes. They provide superior energy efficiency and offer much greater design flexibility than other cladding products. The insulation board provides the system flexibility and thermal resistance for insulating qualities. The surface of the board is covered with a continuous, fiberglass mesh reinforcement embedded in a basecoat, which provides strength and water-resistance to the system. An application of a colored acrylic finish coat gives the wall its finished look. The final and critical step is the application of sealants or caulking around the openings, such as windows and doors.

Feature :: There are three layers to EIFS

Inner Layer Foam insulation board that's secured to the exterior wall surface, often with adhesive.
Middle Layer A polymer and cement base coat that's applied to the top of the insulation, then reinforced with glass fiber mesh.
Exterior Layer A textured finish coat.