Interior Design Professional Practice Exam

Category - Interior Design Practice Exam

Why are vertical joints normally installed in long lengths of masonry walls?
  1. To provide nailing access to wood backing
  2. To provide strength to the wall
  3. For aesthetic purposes only
  4. To control cracks in the wall
Explanation
Answer: D - To control cracks in the wall
Vertical joints, called “control joints” are installed to help control vertical wall cracks in masonry construction.
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