Humber/Ontario Real Estate Course 4 Exam Practice

In constructing a single-width brick wall for a home, what is crucial to include between the brick and the wall sheathing?

1. An air space should be left between the two.

2. The brick veneer should act as the primary structural support.

3. Special endwise brick rows for wall integrity.

4. No need for weep holes, similar to solid masonry walls.

5. The same set of bricks used in the foundation should be continued.

6. The bricks should be mortared directly to the sheathing without gaps.

The correct answer is: An air space should be left between the two.

The inclusion of an air space between the brick and the wall sheathing is essential in the construction of a single-width brick wall. This air space serves multiple purposes, particularly in managing moisture and ensuring ventilation. When water penetrates the brick veneer—whether through rain or other forms of moisture—this space allows for proper drainage and air circulation, which helps to prevent the accumulation of moisture against the sheathing. If moisture were to get trapped, it could lead to issues such as mold growth, wood rot in the sheathing, and ultimately compromise the structural integrity of the wall. Additionally, the air gap also helps with thermal performance and can provide insulation benefits. Including an air space is a common practice in brick veneer construction, as it aligns with building codes and best practices for durability and safety in residential structures. This highlights the importance of proper design and construction techniques to support the longevity and functionality of a building envelope.