What is a direct consequence of poor insulation in a building?

Higher energy consumption is a direct consequence of poor insulation in a building because insulation serves to reduce the flow of heat between the interior and exterior environments. When insulation is ineffective, more energy is required to maintain comfortable indoor temperatures, particularly in extreme weather conditions. Without proper insulation, warm air can escape during colder months, leading to increased heating costs. Conversely, in warmer months, cool air can be lost, requiring more energy for air conditioning. This results in an overall increase in energy usage, making buildings less energy efficient and more costly to operate.

The other choices reflect outcomes that are not directly related to poor insulation; for example, increased airflow might occur due to drafts, but it does not imply energy consumption alone. Consistent indoor temperatures and enhanced comfort are typically benefits provided by effective insulation, not consequences of poor insulation.