Which part of a home inspection focuses on water intrusion?

The focus on water intrusion during a home inspection is primarily concerned with the roofing system and its drainage components. This is because the roof is the first line of defense against moisture entering the home. Effective roofing materials, proper installation, and appropriate drainage systems such as gutters and downspouts are vital for directing water away from the structure. If these components are compromised, it can lead to significant issues like leaks, mold growth, and damage to the home's structure and interior.

While insulation and moisture barriers also play a role in controlling moisture levels, their primary function is to regulate temperature and prevent condensation rather than directly defending against water intrusion. Similarly, while HVAC systems and interior walls and ceilings can be affected by water issues, they themselves are not the primary focus regarding water intrusion during an inspection. Thus, a comprehensive examination of the roofing system and drainage components is essential to assess the risk of water intrusion effectively.