Schaumburg (IL) had a box alarm at approximately 0700 Tuesday, June 6th (6-3-14) at 525 Estes in a one-story 75X100 commercial building, they had heavy fire and used 1-tower ladder, 1-ladder pipe, and several hand lines, the fire was well under control when I arrived and companies were doing some overhaul at the roof lines in the front of the building and beginning the investigation.