Tessa explains the basics of building science, touching on many components that overlap with home inspections. These topics include:

• Airflow and the H.A.M. sandwich (heat, airflow, and moisture)
• Occupant loads and the effect on buildings
• Blower door testing
• Old house vs. new house performance (energy vs durability)
• The importance of different trades communicating with each other
• Water management
• The myth that it's possible to build houses too tight