Canton, NY, Feb 10, 2011 — As the snow piles up across the North Country, homeowners are looking nervously at those deep drifts piling up on their roofs. Snow can also block furnace and drier vents.

Officials say roof collapses are rare, but a few high-profile barn collapses have residents eager to get their roofs shoveled.

That's keeping contractors busy. David Sommerstein spoke with one on a rooftop in Canton yesterday.