Sawtooth Fortified
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Seismic Expansion Joints

Sawtooth Fortified crew installing a seismic expansion joint cover

Why Seismic Expansion Joints Matter

  • Designed to absorb seismic activity and prevent structural damage.
  • Keeps water, air, and debris out of gaps created by movement.
  • Protects against wear from traffic, vibration, and environmental exposure.
  • Meets seismic expansion joint and building code requirements for large-scale projects.

Seismic Expansion Joint Applications

  • High-rise towers
  • Hospitals and schools
  • Industrial plants
  • Parking structures and bridges

Why It Matters

Every commercial building moves. Whether from seismic activity, thermal expansion, wind load, or natural settling, these forces put stress on the building envelope. Without properly designed and installed expansion joint systems, movement leads to cracking, leaks, and compromised safety.

At Sawtooth Fortified, we specialize in seismic expansion joints and expansion joint covers (EJCs) that protect buildings from these stresses while maintaining structural integrity. For over two decades, contractors, engineers, and owners have trusted us to deliver systems that perform when it matters most.

“Several years ago, when one of the largest frozen food processing plants in the world approached us to recommend a professional expansion joint installer for our product, we immediately turned them over to Sawtooth Fortified. Our client never looked back, and it was a wildly successful project. Since that day, Sawtooth Fortified has been incredible to work with and has become an extremely valuable partner to Sika Emseal. AJ and his team are very tactical on the projects they pursue and their desire to provide quality, responsiveness, and amazing overall customer experience. Their teams are highly trained, easy to work with, and ready to pursue a variety of scopes throughout the NW states and beyond. I would highly recommend reaching out to Sawtooth for your next expansion joint project.”

Brett Kerekffy

Regional Sales Manager, Emseal Joint Systems Ltd.

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Featured Seismic Expansion Joint Projects

Albany, Oregon

West Albany High School

During the Expansion Construction Project of West Albany High School, Sawtooth's scope was full below grade install with Tremco's Paraseal LG system, and Tremco 250 GC system. Paraseal LG is a sheet waterproofing membrane consisting of 20 mils of HDPE, expandable, granular bentonite and a protective layer of spun-bonded polyester. All seismic expansion joint sealants were done with DOW Corning 790, and our Seismic Division performed a full Seismic EJC install with CS Group Expansion Joint Covers.

Lakeridge Middle School