What is the goal of controlling temperature in a roof system through proper insulation?

The primary goal of controlling temperature in a roof system through proper insulation is to reduce heating costs. Insulation works by creating a barrier that slows the transfer of heat between the interior of a building and the outside environment. In colder climates, effective insulation helps keep the heat generated by heating systems inside the building, thereby requiring less energy to maintain a comfortable temperature. This leads to lower heating costs over time.

When insulation is properly installed, it also contributes to the overall energy efficiency of the home, which can lead to savings in cooling costs during warmer months as well. While preventing air leaks and lowering roof weight are important aspects of roofing systems, they are not the primary objectives of insulation regarding temperature control and energy efficiency. Increasing humidity would generally be counterproductive in a roofing context, as it could lead to issues such as mold and deterioration of building materials.