Roof, gutters, downspouts and exterior drains can be easy to ignore during Southern California's dry months. Here's what homeowners should check before the rain arrives. Rain problems often start before it rains For much of the year, gutters and exterior drains may barely get used. During that time, leaves, dirt, roofing debris and other material can accumulate without causing an obvious problem. Then the first significant storm arrives. A gutter that looked fine during summe