What does weather stripping accomplish?

Weather stripping is designed to create a seal between windows and door frames, effectively preventing air leakage. This sealing helps to maintain the desired indoor temperature by minimizing drafts from outside air. By reducing the amount of air that escapes or enters through gaps around windows and doors, weather stripping contributes significantly to energy efficiency. It helps in keeping heating or cooling systems from working harder, which can lower energy bills and improve comfort within the indoor environment.

The other options pertain to different aspects of building energy efficiency or comfort but do not relate directly to the specific function of weather stripping. For example, increasing natural lighting in a space addresses windows and their placement but does not involve sealing. Adding insulation to walls is a separate technique aimed at reducing heat transfer through walls, not around openings. Enhancing airflow within a building refers to ventilation systems and does not apply to weather stripping, which is primarily focused on sealing against air movement. Therefore, weather stripping is essential for air management and energy conservation in a building.