Prepare for the General Contractor Exam with our comprehensive quiz. Featuring flashcards and multiple-choice questions, each accompanied by hints and detailed explanations, this resource will ensure you’re ready for your licensing examination!

Practice this question and more.


What is the minimum allowed width for a mortar joint in glass block construction?

  1. 2 inches

  2. 3 inches

  3. 4 inches

  4. 5 inches

The correct answer is: 3 inches

In glass block construction, the minimum allowed width for a mortar joint is set to ensure structural integrity and adequate bonding between the glass blocks. A mortar joint of 3 inches is standard because it allows for sufficient space to accommodate any discrepancies in block size, offers proper sealing against water infiltration, and provides enough mortar to ensure a strong adhesion. This width also facilitates the even distribution of forces across the blocks, which is essential given that glass is a brittle material. Maintaining this standard width helps in achieving a durable installation while also complying with building codes and best practices within the industry.