Expansion joint refers to a construction joint set at an appropriate location along the direction of the construction joint of a building or structure to prevent cracks or damage to the structure caused by climate temperature changes (thermal expansion, contraction). Expansion joints divide building components above the foundation, such as walls, floors, and roofs (excluding wooden roofs), into two independent parts, allowing the building or structure to expand horizontally along its length.
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Leah Liu
Hello there! I am Leah. I have worked in the building materials industry for over 10 years. I want to share my experience here - let us make progress together!