Exterior Insulation and Finish Systems (EIFS)

Exterior Insulation and Finish Systems (EIFS) are proprietary, multi-layered exterior wall systems that are increasingly popular with architects, building and home owners because they improve energy savings, reduce costs and provide tremendous design versatility. Dow teamed up with Dryvit Systems, Inc., a leading manufacturer of exterior insulation and finish systems (EIFS), to provide rigid insulation for Outsulation X, a high performance cladding system. DOW™ XNERGY™ rigid insulation is key to the system’s excellent energy efficiency, durability and moisture resistance.


Meeting the increasing demand for EIFS, Dryvit offers customers an energy-efficient cladding system that places insulation on the outside of the wall, where it’s most effective. Dryvit’s Outsulation X System yields 39 percent greater energy efficiency and 36 percent better impact resistance (compared with similar systems based on expanded polystyrene (EPS) with comparable weight-reinforcing mesh).

DOW™ XNERGY™ rigid insulation is an integral component of the Outsulation X system, providing a continuous layer of insulation that eliminates thermal breaks and moderates the temperature of the wall cavity, reducing the potential for dew point condensation. Outsulation X with DOW™ XNERGY™ is suitable for new construction and renovation, and it meets both current and proposed building codes and design standards for the use of exterior continuous insulation.

Outsulation X System provides architects designing Exterior Insulation and Finish Systems (EIFS) assemblies with a single-source solution for the air and water-resistive barrier, continuous insulation and exterior wall finish. By reducing project requirements for concrete, structural steel and HVAC, the lightweight and energy-efficient Outsulation X system helps streamline the construction process and minimize material costs, as well as lower heating and cooling expenses. The higher density of DOW™ XNERGY™ rigid insulation plus heavier mesh and a double base coat together enable a stronger EIFS assembly.

To learn more about this system visit Dryvit.

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