A home inspector climbs onto the roof, pokes at the foundation, and crawls into attic space looking for water condensation or penetration. On homes in hurricane zones, he’ll examine roof trusses to be sure they’re connected to the frame as per code. Walls are examined for leakage or mold. Floor cracks are noted, as is separation from the baseboards. The ceilings, especially around electrical fixtures, must be clear of any signs of water leakage.