In the construction or building Industry, an expansion joint is a structure separation designed to relieve stress on the walls and building materials caused by movement of the building induced by:

• thermal expansion and contraction caused by ambient temperature changes

• wind related sway

• seismic movements

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Because the joint cuts through the entire structure, it marks a gap through all building assemblies–walls, floors, roofs, decks, etc. This gap must be filled to make the structure suitable for waterproofing, fire proofing, sound proofing, air barrier, roof membrane, trafficable surfaces and other building elements it bisects. Expansion Joints or Movement Joints for Buildings, Shopping Malls, Airports and Runways, Hotels and Resorts, Stadiums, Train and Metro Stations, Parking Garages and Parking Buildings are of different kinds for different applications but have the same concept and similar workings with different expansion and contraction range and substrates.

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Expansion joints and systems are used to bridge the gap and restore building assembly functions while accommodating expected movements. Expansion joints are also called Movement joints as it more appropriately covers the fact that building movement results in both compression and expansion of the surfaces and the material installed. 

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When a structure heats up, the building materials from which it is built expands. This causes the “expansion joint” to close, thereby compressing the expansion joint product that is installed in the gap.

The usage of expansion joints are mostly seen in large buildings which have a larger area than it's height.

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So,if there is a siesmic movement, expansions or contraction or the building or any of its elements, expansions joints and movement joints help in reduce or elimiate the stress caused due to such phenomenon and protect from cracking or any surface or internal deformities. 

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Linear Systems are Expansions Joints Supplier in Dubai and Movement Joint Suppliers in Dubai are knowledeable to this fact and provide various options towards making your building secure.