 Before Quint 20 could contain the situation, the flames had already spread into the attic and upper cock loft area, which led to command requesting a 2nd alarm assignment.Quint 20's crew was able to clear fire from the main fire floor and proceed into the attic space however, the attic was quite tight due to the structure being around for over 100 years.A 3rd alarm assignment was called in for manpower as crews cleared the building quickly to resupply on breathing apparatus which ran low.