Here is a good video showing LAFD going to work on a single story commercial structure. The video shows heavy fire showing from the side and rear of the building. LAFD did a nice job getting a quick knockdown, even with having to cut through a security gate. The video comes from firelensman and a description is below.
“3-14-2016 Los Angeles Firefighters first on scene at 6559 South Normandie Avenue had smoke and fire showing from the rear of a one story commercial building housing a “security gate” business. Firefighters quickly forced entry and attacked the fire in a rear occupancy, knocking down intense flames in 20 minutes. The fire was brought under control in 40 minutes. Firefighters encountered fire on the roof and had also laid lines into other small commercial buildings to the south, preventing extension. There were no reported injuries, L.A. County Sheriffs who happen to be in the area at the time of the blaze also called it in. – MNR -“