New Baltimore Fire responded to an automatic alarm at the Serta mattress warehouse located on Houghtaling road. Dispatcher from Greene County advised a 2nd call with a confirmed working fire within a minute of initial call. Arriving units had a heavy smoke condition with flames visible from the roof. As initial fire attack was being made the sprinkler system activated and assisted with extinguishment. New Baltimore Fire was assisted by Coeymans, Coxsackie, and Fast Team members from Coeymans Hollow and Medway.