Expect your shovels to get a lot more action over the next day or so as we get pounded with another winter blast. But one of the biggest hazards of all this snow may be piling up on your roof. Our Erin Connolly explains.

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ALBANY, N.Y. -- As the snow continues to fall, driveways are a mess. But these storms aren't just affecting what you see looking down, but also what you see looking up.

Bill Mitchell of the Center for Energy Efficiency and Building Science at Hudson Valley Community College said, "Icicles are basically caused by heat heading into an attic."

Mitchell is a trainer at the Center for Energy Efficiency and Building Science at Hudson Valley Community College. He says when you see icicles on the outside of your house, it means there's an issue inside.

Mitchell said, "What we are looking at right now are all kinds of penetrations in the home that can cause all sorts of heat escaping."

And it's not just the basement of this house in Albany where the heat is being let out. Heading upstairs, Mitchell finds other issues.

Mitchell said, "Canned lights are another huge source of heat loss into an attic. You can see this canned light here it has a lot of penetrations associated with it."

Mitchell said, "From our investigation in the basement, basically what we have is heat flow coming up through here all the way from the basement along this exterior wall and then it's making its way to the roofline."

Mitchell recommends homeowners to hire an accredited building analyst to conduct an audit. That's because he says avoiding the problem could mean bigger problems than just some pesky icicles.

Mitchell said, "There's moisture moving along with heat and that moisture can affect the longevity and durability with home and can be associated with mold in the home."

And take it from the experts. Cleaning your roof is not a do it yourself project. Leave the work to a professional.