UBI, Inc. The structure of a house is what gives it strength. Some of the most commonly asked questions during an inspection are related to evaluating the condition of the structure. The two main components of the structure are the framing system and the foundation. Each component is critical in providing the building with long lasting comfort and stability. The visible portions of the buildings foundation are carefully inspected as well as the flooring system and roofing structure. Other areas of the interior and exterior are also carefully inspected for any evidence of structural issues. The basement is carefully examined for any signs of past or potential moisture issues. The slope around the home is also evaluated for potential water drainage issues.