The key function of the expansion joint is to allow the building components on either side expand, whilst the joint effectively shrinks, is a gap in a structure or structural element which is designed to separate its constituent parts and to accommodate
movement of a defined nature and amount. The bigger and more complex the structure, the bigger and more complex can be the movement joints, and the bigger the challenges are in successfully accommodating the movement and simultaneously sealing them. It’s available in stainless steel ,aluminum and rubber.
