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                                 Exterior Insulated Finish System

Whether you are building a new property, purchasing a property, or maintaining an existing property, let Atlantic Inspections become part of your team.

Barrier EIFS

EIFS with drainage is conventional EIFS installed ovea water-resistive barrier, with provisions for discharging of incidental water that may enter behind the insulation board. In the event of a breach of the EIFS, the drainage path for moisture exists behind the EIFS to drain water to the exterior.


Exterior Insulation and Finish System (EIFS) is an exterior wall cladding that utilizes rigid insulation boards on the exterior of the wall sheathing with a plaster appearance exterior skin. EIFS in its current basic form was developed in West Germany in the 1960s and introduced in the United States in 1969 by Dryvit. The Dryvit system consisted of expanded polystyrene (bead board) attached adhesively to the sheathing and covered with a lamina composed of a modified cement base coat with woven glass fiber reinforcement and a textured colored finish coat. This system is known as a barrier system.  Over the years, variations of this system have been developed.

Moisture drainage (MD) EIFS are significantly different from barrier systems in that, by definition, they have a provision for drainage. Unlike face-sealed perfect barrier systems such systems can be successfully used as an exterior cladding system in essentially all climates and exposures. Drainable EIFS are not subject to the same limitations of use as face-sealed or barrier systems. In fact, drainable EIFS are among the most robust and advanced moisture control assemblies available.


Problems observed with in-service EIFS installations are primarily related to moisture intrusion. EIFS provides protection against moisture infiltration at the base coat; however, moisture migration through openings for windows, flashings and other items, or holes and cracks in the EIFS itself, have allowed leakage to occur on EIFS clad buildings. With barrier EIFS installations, or where weather barriers and flashing are improperly installed in conjunction with wall drainage EIFS installations, moisture has entered the wall system at these locations and caused damage to the wall sheathing and framing. The extent of these occurrences on wood frame structures has led to class action lawsuits.

There are virtually no limitations on the locations where EIFS can be used as an exterior wall cladding beyond those imposed by codes. These occurrences of water infiltration have also led to many code restrictions on the use of EIFS. These code restrictions are evolving and changing as further testing is developed and implemented. Most codes require a code evaluation report for the selected manufacturer's system and may impose additional restrictions on the use of barrier EIFS. Applicable local codes should be consulted prior to designing EIFS claddings.

Contact us in New Jersey, New York,and Connecticut today to schedule an appointment for your EIFS or stucco inspection.