Part 3/9:
Windows are fantastic for letting natural light into a home, but they are also significant sources of heat gain, especially during hot summer months. This phenomenon, known as insolation, occurs as sunlight passes through glass, warming up the interiors of a home. While modern advancements have improved the insulation properties of glass, the effectiveness can only go so far against the sun's power. Once inside, the absorbed light energy is re-emitted as heat, creating discomfort in the living space.