At 18:12 hours the Montgomery County Communications Center requested Squad-15 cover Station 47A (King of Prussia) while their crews were battaling a commerical building fire. 2nd and 3rd alarms were transmitted in succession which called for Squad-15 to divert to the scene. Crews lead by 15-9A (Maguire, J) helped with opening up the 1st floor soffit area checking for extension. All hands worked hard for hours opening up the office building on the 1st and 2nd floors. The office building had been occupied by a number of employees at the time of the fire. Windy conditions hampered crews as they tried to extinguish hot spots found all around the building.  Squad-15 was released by 22:30 hours.