Certified Energy Auditor Practice Exam 2025 – All-in-One Resource to Achieve Exam Success!

When insulation is inadequate, it fails to provide effective thermal resistance, which allows heat to escape during colder months and enter during warmer months. This results in the heating and cooling systems working harder to maintain the desired indoor temperature, leading to increased energy consumption. As a consequence, utility bills rise because more energy is needed to compensate for the heat loss or gain.

In contrast, adequate insulation helps maintain a stable indoor temperature, enabling heating and cooling systems to operate more efficiently and reduce energy costs. Therefore, the financial burden associated with energy losses caused by poor insulation becomes evident, as it can significantly drive up heating and cooling expenses. The other options presented do not align with the effects of inadequate insulation, as they imply improved cost efficiency or comfort, which is contrary to the reality of energy loss due to insufficient thermal barriers.