Where should insulation be installed to maximize its effectiveness?

Insulation should be installed at the surface closest to the conditioned space because this placement minimizes thermal bridging and maximizes the insulation's effectiveness in reducing heat transfer. By installing insulation in this manner, you create a barrier that helps maintain the desired temperature in your living spaces, whether you are trying to keep heat in during the winter or out during the summer. This approach effectively conserves energy and enhances overall comfort within the conditioned areas of the building.

While insulation in attics, basements, and exterior walls is important for overall thermal performance, focusing on the points closest to the living areas helps ensure that heat is retained or repelled right where it matters most. Proper installation takes into consideration air leaks and the surrounding conditions, reinforcing that correct placement is crucial for effective thermal management.