Housing Counselor Certification (HUD) Practice Exam

Which strategy is most effective at increasing a home's energy efficiency?

1. Increase ceiling fan usage

2. Increase attic insulation

3. Replace windows with new glass

4. Install programmable thermostats

The correct answer is: Increase attic insulation

Increasing attic insulation is highly effective at improving a home's energy efficiency because it plays a critical role in regulating temperature within the home. This component serves as a barrier to heat transfer, preventing warm air from escaping in the winter and keeping hot air from entering in the summer. By enhancing attic insulation, homeowners can significantly reduce their heating and cooling demands, which in turn leads to lower energy bills and a decrease in environmental impact. Other strategies, while beneficial, may not provide the same level of energy savings. For instance, increasing ceiling fan usage can enhance comfort and reduce the load on air conditioning, but it does not directly reduce heat loss or gain. Replacing windows with new glass can improve energy performance, but it typically involves a larger upfront investment and longer payback period compared to simply adding insulation. Installing programmable thermostats contributes to energy efficiency by optimizing heating and cooling schedules but relies on existing insulation and efficiency measures being in place to achieve maximum benefits. Therefore, increasing attic insulation stands out as the most impactful strategy for enhancing a home's overall energy efficiency.