Red Seal Bricklayer Practice Exam

Which issue can arise from using insulation that is not suited for brick walls?

1. Decreased thermal efficiency

2. Increased fire hazards

3. Higher construction costs

4. Limited design options

The correct answer is: Decreased thermal efficiency

Using insulation that is not suited for brick walls primarily leads to decreased thermal efficiency. Brick walls inherently have thermal mass properties, meaning they can absorb and store heat. If insulation materials that do not complement the brick's characteristics are used, it can disrupt the intended thermal performance of the wall system. This disruption may result in heat transfer through the walls being less effective, causing the building to become less energy-efficient. Inadequate insulation can lead to increased energy consumption for heating or cooling, ultimately resulting in higher utility bills and discomfort within the space. Selecting appropriate insulation is crucial because it must work in harmony with the thermal mass and moisture management properties of brick. If the insulation fails to perform adequately, it can also lead to issues such as condensation within the wall system, which can further compromise energy efficiency and potentially damage the brick structure over time.