9/3, 1405 hrs.: 1009 Moreland Ave. Heavy smoke from a single story frame duplex, believed to be vacant. Heavy fire extension to the attic. Searches negative. Crews slowed by collapsed roof in the rear just after the interior was made. No injuries. Units on the alarm: E-5,1,2,L-1,2,S-1,Batt-2,FD-5,20