16. Brick ties in brick veneer walls allow for
A. water drainage.
B. air circulation.
*C. expansion.
D. inspection.
correct
To determine the correct answer, we need to understand the purpose of brick ties in brick veneer walls. Brick ties are metal connectors or anchors that are used to attach the brick veneer to the structural backing of the wall. They are installed to ensure that the brick veneer remains firmly attached and does not separate from the backing.
Now, let's examine the available options:
A. Water drainage: While it is important for walls to have proper water drainage systems to prevent water damage, brick ties themselves do not directly contribute to water drainage.
B. Air circulation: Brick ties do not play a role in promoting air circulation within the wall.
C. Expansion: This option seems plausible. Expansion refers to the natural movement or expansion and contraction that materials undergo due to temperature changes. Brick veneer walls can expand and contract with temperature changes. Brick ties accommodate this movement, allowing for the expansion and contraction of the brick veneer without causing damage to the wall. This helps to maintain the stability and integrity of the brick veneer.
D. Inspection: Brick ties do not typically serve the purpose of facilitating inspection.
Based on the explanation, we can conclude that the correct answer is C. expansion.