The winter of 2010-2011 was particularly snowy in the Northeast. Heavy snows resulted in nearly 500 problem roofs in the states of Connecticut, Massachusetts, New York and Rhode Island, of which 382 were full or partial collapses. This large number of roof problems led to questions raised by engineers and state building officials as to the adequacy of current building codes in relation to roof snow loads. Specifically, were the 2010-2011 winter roof problems due mainly to roof components not as strong as envisioned by current codes, or were the 2010-2011 roof snow loads larger than those envisioned by building codes? …