Exterior insulation and finish system (EIFS) is a general class of non-load bearing building cladding systems that provides exterior walls with an insulated, water-resistant, finished surface in an integrated composite material system. EFIS provides exterior walls with an insulated, water-resistant, finished surface like conventional cement stucco yet incorporates an acrylic or synthetic finish coat.
EIFS were first introduced in the United States in the late 1960’s, and were first used on commercial buildings, and later on homes. EIFS typically consist of the following components:
- A water-resistive barrier (WRB) that covers the substrate
- A drainage plane between the WRB and the insulation board that is most commonly achieved with vertical ribbons of adhesive applied over the WRB
- Insulation board typically made of expanded polystyrene (EPS) which is secured with an adhesive or mechanically to the substrate
- Glass-fiber reinforcing mesh embedded in the base coat
- A water-resistant base coat that is applied on top of the insulation to serve as a weather barrier
- A finish coat that typically uses colorfast and crack-resistant acrylic co-polymer technology.
The finished look is the same as traditional stucco. It is mainly used in Commercial applications. As certified EIFS installers, we do EIFS jobs around the entire Mississippi Gulf Coast.