To the best of my knowledge, no one was significantly injured but the fire itself brings about some important safety issues which could possibly be addressed. First, it's important to note that fires can often be prevented; the United States Fire Administration has a helpful PDF document which can help you prevent any sort of fire in your home. It's a 20-page document, but mentioned in it are essentially the use of fire alarms, the viability of residential sprinkler systems, child supervision, the poisonous gasses produced by fires, and a number of other topics of use to anyone who, when seeing something of this nature, tends to feel inclined towards seeking to prevent the same thing from re-occurring.
The NHFD was on the scene in force, with several trucks including #3 Ladder, which assisted some firefighters up to the roof in order to create some ventilation.
