Georgia-Pacific has announced a strategic partnership with Sika Corporation to launch an exterior insulation and finish system that integrates the DensElement Barrier System as the water-resistive and air barrier substrate.

The integrated assembly is positioned as a streamlined building envelope solution for commercial construction. According to the companies, the system is designed to reduce installation steps, limit material use and provide a weather-resistant substrate intended to support more consistent field performance.

“Innovation is key at Georgia-Pacific, and our collaboration with Sika represents a contractor-focused step forward,” said Joseph Harris, product manager for the DensElement Barrier System at Georgia-Pacific Building Products. “This system combines the efficiency and performance of DensElement Barrier System with the established reliability of Sika’s EIFS product lines.”

The DensElement Barrier System integrates the water-resistive barrier and air barrier (WRB/AB) directly into the gypsum sheathing. The approach eliminates the need for a separate field-applied WRB across the sheathing plane, which can reduce installation steps and help accelerate dry-in.

For contractors installing EIFS assemblies, integrated WRB/AB sheathing may simplify sequencing on the exterior wall. However, penetrations, panel joints and transitions still require detailing and compatible flashing products to maintain air- and water-barrier continuity.

System Characteristics

Continuity: Because the WRB/AB is manufactured into the sheathing panel, installers avoid a full-field membrane application. The companies say this reduces weather exposure risks associated with field-applied barriers and can improve schedule reliability.

Material Reduction: With the air- and water-barrier integrated into the sheathing, contractors may reduce jobsite material associated with separate WRB membranes. This can also reduce handling and waste from field-applied barrier systems.

Assembly Performance: The system maintains typical EIFS characteristics, including continuous insulation for improved thermal performance, a drainage plane intended to manage incidental moisture, and architectural design flexibility.

Warranty: The DensElement Barrier System carries a 12-year limited warranty when used as a drainage plane in qualifying assemblies. Sika provides a separate 12-year material warranty for its EIFS products. Contractors should review compatibility requirements and system details to ensure warranty coverage.

Installation Considerations

DensElement panels are designed to support installation in a range of weather conditions, which may help maintain enclosure schedules during colder periods. According to the manufacturer, DensDefy Liquid Barrier used at joints and transitions can be applied in temperatures as low as 25°F and cures at temperatures as low as 32°F.

As with any EIFS assembly, installers should confirm compatibility between sheathing treatments, base coats, adhesives and insulation boards. Particular attention should be given to panel joints, fastener penetrations and window interface detailing to maintain continuous air- and water-barrier performance.

For wall and ceiling contractors working on exterior envelope scopes, integrated WRB/AB sheathing may reduce labor steps during enclosure while maintaining the drainage and insulation benefits associated with EIF systems.

More information is available from Sika Corporation.