An extensive fire was considered unlikely because of a lack of flammable materials throughout the complex, other than packing materials in the rear. There were open spaces between rooms in place of doors to allow for easy access by forklift trucks. The only barriers were curtains of plastic strips between some to hold in refrigerated air. This allowed for rapid spread of smoke and heat in the deadly blaze. The building's previous use as an ice cream production facility meant that the walls and floor were hard, smooth surfaces, which limited the amount of material that was available to absorb heat and smoke during the fire.