Air Sealing refers to the process of preventing air leakage in buildings by sealing gaps and cracks in the building envelope. This skill involves the identification and application of appropriate materials and techniques to enhance energy efficiency and indoor air quality. Knowledge of Air Sealing is used to improve thermal comfort, reduce energy consumption, and minimize the infiltration of outdoor pollutants by ensuring a more controlled indoor environment.

Building performance is the practice of analyzing, evaluating, and optimizing the performance of buildings to ensure they operate efficiently and sustainably while providing healthy indoor environments. It involves a specialized set of skills, including knowledge of building systems, energy efficiency, environmental sustainability, and indoor air quality. Building performance professionals use a variety of tools and techniques to assess and improve building performance, such as energy audits, building modeling, and retrofitting. The goal is to create buildings that are both environmentally responsible and provide a high level of comfort and functionality to occupants.

Energy Efficiency Assessment refers to the systematic evaluation of energy use within a building or system to identify opportunities for reducing energy consumption and improving overall efficiency. This skill involves analyzing energy data, assessing equipment performance, and identifying areas where energy waste occurs. Knowledge of Energy Efficiency Assessment is used to develop strategies for implementing energy-saving measures, which can lead to cost reductions and enhanced sustainability in various environments.

Home Energy Assessment refers to the systematic evaluation of a residential property's energy use and efficiency. This skill involves analyzing various factors such as insulation, heating and cooling systems, and appliance performance to identify areas for improvement. Knowledge of Home Energy Assessment is used to recommend strategies for reducing energy consumption, enhancing comfort, and lowering utility costs, ultimately contributing to more sustainable living environments.

Weatherization refers to the process of making buildings more energy-efficient and comfortable by reducing energy consumption and improving indoor air quality. This skill involves assessing a building's energy performance and implementing measures such as insulation, air sealing, and ventilation improvements. Knowledge of Weatherization is used to enhance energy efficiency, lower utility costs, and create healthier living environments by addressing issues related to heat loss and air infiltration.