Base Isolation & Seismic Solutions

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Concept Design

• Collaborate with your team to gather project details and ideas.
• Establish which cover solutions work best for your project.
• Present drawings to the design team, highlighting how the systems function.
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Design Assist Phase

• Includes regular meetings with the project team to develop custom solutions.
• Ensures that all materials and the building's surround are properly prepared.
• Creates submittal documents encompassing specification information, coordination drawings, and calculations.
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Testing Phase

• Proactive in-house testing.
• Verification of safety and functionality.
• Assurance that our systems perform exactly how they are expected to.
Wilshire Grand Center expansion joint solutions

Design Development Phase

• Prepare highly detailed placement drawings for use in the field.
• Offer support, guidance, and coordination for proper installation.
• Provide high-quality materials on time.

Helpful documents prior to making a selection


Need More Guidance on Seismic Joint and Base Isolation Selection?

We are here to help you select and design the best seismic joint and base isolation solutions for your project.


What is Base Isolation?

Base isolation is a construction method used to protect buildings from earthquakes. It involves placing flexible bearings or isolators between a building's foundation and its structure. These isolators absorb seismic energy, allowing the building to move independently from ground shaking reducing damage.

The Role of Seismic Joints in Base Isolation
Seismic joints or expansion joints and joint covers are necessary in base-isolated buildings because the structure moves differently from the foundation during an earthquake. Seismic joints create gaps that allow for this movement, and the joint covers protect these gaps while maintaining a smooth surface for functionality and aesthetics. The main role of these systems is to accommodate the expected displacement of the structure while also allowing entry and exit points for first responders and occupants.

Questions to Ask When Selecting Seismic Joints

Gathering the following information is a great place to start when identifying the right base isolation and seismic joint solutions for your project:

  • What is your nominal joint size?
  • What type of movement is expected?
  • Is lateral shear movement expected?
  • Are there any special loading requirements? (Example: heavy rolling loads)
  • What is the construction? (Examples: new to existing, new to new, drywall to CMU, metal panel to EIFS)
  • Does the seismic joint need to be fire-rated or waterproof?
  • What is your design vision for the space?
  • What is your budget?

Use Product Filters to Find the Options That Fit Your Specs

After answering some or all the questions above, use product filters to further narrow down your options. Filter by movement type, joint size, finish, construction type, and more until you reach a decision.

Seismic Joint Product Guide PDF

Our product guide includes a side-by-side breakdown of all CS’ expansion and seismic joint solutions. Compare joint sizes, cover materials, finishes, fire barrier details, and more.

Need Further Assistance?

Contact us via live chat or by filling out this form to speak with a product expert. We’ll help you select and test the right base isolation and seismic joint solutions for your project.