Common Defects Extensive termite damage to floor framing timbers Severe degradation (Fretting) to terra-cotta roof tiles. Defective tile batten. Here the brick pier has settled and no longer supports the floor framing timbers. PROUD ……… My Father 25+ years ago. One of the 1st to conduct Pre-Purchase Building Inspections. Severe differential settlement of foundation soil has caused isolated brick pier to sink and rotate. Checking for water leakage from defective shower recess above.