Certified Energy Auditor Practice Exam

What effect does increasing insulation have on a building's energy efficiency?

1. No significant effect

2. It decreases energy efficiency

3. It can enhance energy efficiency

4. It only improves comfort

The correct answer is: It can enhance energy efficiency

Increasing insulation in a building plays a crucial role in enhancing energy efficiency. Insulation works by reducing the rate of heat transfer between the interior and exterior of a structure. With better insulation, less energy is required to maintain a comfortable indoor temperature, leading to reduced heating and cooling demands. When insulation levels are improved, the building becomes more effective at retaining heat in the winter and keeping heat out in the summer. This contributes to lower energy consumption, which not only decreases utility bills but also reduces the overall carbon footprint associated with energy production. Consequently, the enhancement in energy efficiency translates to a more sustainable and cost-effective building operation. While it is true that improved insulation can also contribute to enhanced comfort levels, its primary function in the context of energy efficiency is to minimize energy loss and improve the overall performance of a building’s heating and cooling systems. This is why increasing insulation is widely recognized as a key strategy in energy conservation efforts in buildings.