This fire was in Northern Philadelphia, it is Somewhat west of the Philadelphia Fire Academy. Take note of the cinder block walls of this building that were covered with a Mansard style Wood Covering. Any fire venting or auto exposing out any widow near the wood siding had to result in a serious fire in the wood siding and the void spaces behind the siding. Construction like this always has severe consequences in the event of any self-vented fire. Look around your response area what do you have in your neighborhoods. I proud to say my grandson is a member of the Philadelphia F.D. serving in West Philly. Captain Bob Rainey FDNY Engine 26 retired