What is an Expansion Joint System (EJS)?
This is simply a transition across an expansion joint opening. In other words it is a cover, or an insert. Covers may be simple cover plates and inserts may be simple compression seals. Many systems are engineered to fulfill a variety of additional functions and it is these functions together with the way the systems have been designed to perform them, that has given rise to a broad range of systems. Some of these functions include: 1. Fit a predetermined opening size. 2. Absorb building movement, thermal or seismic. 3. Be compatible with various surface finishes. 4. Support a given load.
