Did you know it is best practice to detail building assemblies to accommodate movement? An expansion joint is an intentional separation within building assemblies that relieves stress on components caused by movement.
At the same time, expansion joints help maintain the continuity of exterior envelope systems and interior performance.
Expansion joints are present in all building systems, including foundations, floors, walls, ceilings, and roofs. These joints form a continuous gap throughout the structure, allowing different components to move independently without causing damage.
When designing an expansion joint, several performance factors must be considered:
Each condition requires coordination to ensure the joint performs without compromising the surrounding assembly.
Design TOgether with your structural engineer to determine the type and magnitude of building movement expected in your project. This collaboration helps define the appropriate expansion joint type and configuration.
Consult with expansion joint manufacturers to select products that meet your specific project conditions and performance requirements.
An expansion joint allows building assemblies to move while maintaining structural integrity and envelope performance. Proper coordination across waterproofing, thermal, and structural systems ensures long-term durability and functionality.
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