For Architects & Specifiers

Elastomeric Stucco Systems Engineered for Architects

Stuc-O-Flex delivers high-performance elastomeric wall systems with verified performance data, complete specification resources, and a 40-year history of protecting landmark buildings. Our systems are engineered to provide superior crack resistance and advanced moisture management, ensuring your design integrity endures.

A modern multi-story apartment building with shops on the ground floor stands at a busy street corner. Cars wait at a traffic light, and pedestrians walk on the sidewalks under a clear blue sky.

Engineered Flexibility

Long-Term Wall Performance Through Engineered Flexibility

Buildings are not static. They move, settling under load, flexing with the wind, and responding to thermal expansion and contraction. Traditional, rigid cement stucco resists this natural movement, inevitably leading to cracks that compromise the building envelope and your design. This failure is not a defect; it is a limitation of the material itself.

Stuc-O-Flex was engineered to solve this fundamental problem. Our elastomeric acrylic finish is not a simple coating but the key component of a complete wall system designed for dynamic performance. With an ASTM-tested elongation of 105%, our finish flexes with the structure, maintaining a continuous, crack-free surface that protects the building from water intrusion and preserves its aesthetic for decades.

In coastal and high-moisture environments, Stuc-O-Flex systems also provide enhanced resistance to salt spray exposure and weathering, helping preserve finish integrity and appearance over time. Our use of calcium carbonate fillers, rather than silica-based aggregate commonly found in competing systems, contributes to a smoother, more stable finish profile without the long-term concerns associated with harsher aggregate systems.

ASTM Test Results

Tested Performance, Documented

Every Stuc-O-Flex assembly is backed by third-party ASTM testing. Key results for the Stuc-O-Flex Elastomeric Acrylic Finish and the WaterWay 7mm Rainscreen drainage component.

Stuc-O-Flex Elastomeric Acrylic Finish

WaterWay 7mm Rainscreen

Landmark Projects

Proven Performance Since 1988

For over 40 years, leading architects have specified Stuc-O-Flex for projects where performance, durability, and reputation are non-negotiable. Our systems are field-proven on complex institutional, commercial, and cultural buildings across every climate zone in North America and beyond. This track record provides the ultimate assurance that the assemblies you specify today will perform for years to come.

Bing Concert Hall, Stanford University

UCLA, Dormitory Housing

Virginia Tech, Center for the Arts

Hilton Hotel, Anchorage

University of Washington, Guthrie Hall

Vidorra Condos, San Antonio

Yeosu Exhibition Center, South Korea

System Engineering

Complete System Engineering, Not Just a Finish Coat

A wall’s performance is defined by its entire assembly, not just the outermost layer. We engineer integrated wall solutions that manage the forces of nature from the substrate out. Each component, from the base coat and reinforcing mesh to the finish and drainage mat, works in concert to deliver structural resilience and superior moisture control.

This system-based approach includes the pioneering WaterWay Rainscreen Mat, which creates a dedicated, continuous drainage and ventilation cavity behind the cladding. This vital space allows incidental moisture to drain harmlessly away and promotes drying within the wall cavity, preventing the moisture-related failures common in other systems. WaterWay exceeds ICC/IRC AC-38 acceptance criteria, drains 50 times faster than standard weather-resistive barriers, and maintains a 90% open drainage cavity.

Explore the WaterWay Rainscreen Mat

Review Our Wall Assembly Techical Gudies

Support Materials

Specification Resources

Everything your team needs to specify, detail, and inspect a Stuc-O-Flex assembly lives in the Stuc-O-Flex resource library. Direct links by document type:

Wall Assemblies

Complete assembly drawings and specifications.

Product Data Sheets

Technical specifications and performance data.

Specifications

BIM, CAD & Drawing Details

Digital design files for your projects.

Warranty & Maintenance

Coverage details and care documentation.

Colors & Textures

Color palette, finish options, and textures.

Technical Support

Direct Technical Support for Your Projects

Your project deserves expert support. Our dedicated technical team is available to partner with you from initial design through construction administration. We provide project-specific guidance, answer complex specification questions, and offer responsive support to ensure your wall systems perform exactly as engineered.

Headquarters

Redmond, Washington

15459 NE 95th St,
Redmond, WA 98052

Eastern Division

Knoxville, Tennessee

40+

Years of continuous production and field-validated refinement.