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Channel Across Expansion/Contraction Joints

Follow this procedure when installing a channel across an expansion/contraction joint in a floor slab:

  1. Mark the channel where it crosses the expansion/contraction joint and saw the channel in two at that point.
  2. If frames are used on the channels, the expansion/contraction joint must align with the end of the frame and channel.
  3. Separate the two channel pieces by a width equivalent to the width of the expansion/contraction joint itself.
  4. Fill this space with flexible joint material.

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