What effect does proper insulation have on a building's energy needs?

Proper insulation significantly enhances a building's thermal stability. Insulation helps to regulate temperature by minimizing the transfer of heat between the interior and exterior environments. In cold months, it prevents heat loss from inside the building, while in warm months, it keeps heat from entering. This stability means that the heating and cooling systems do not have to work as hard to maintain comfortable indoor conditions, ultimately leading to reduced energy consumption. As a result, the overall energy needs of the building are lowered, contributing to greater energy efficiency and cost savings in climate control.

The other options do not accurately reflect the true benefits of proper insulation; rather, they suggest negative impacts that are contrary to the fundamental purpose of insulation in modern construction.