Expansion Joints

An expansion joint is a mid-structure separation designed to relieve stress on building materials caused by building movement.

An expansion joint is designed to: 

  • Hold building parts together
  • Safely absorb temperature
  • Safely absorb induced expansion
  • Contract the building materials
  • Absorb vibration
  • Allow movement due to ground settlement
  • Allow movement for seismic activity

Movement in buildings happens every day.  That’s why installing expansion joints are crucial to keeping a building from failing. Whether they are 2″ wide or 12″ wide, Black Roofing & Waterproofing has installed miles of expansion joints.

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