If you are experiencing leaks in your house since the snowstorm, the probable cause is a situation know as “Ice Damming”.
An ice dam is a ridge of ice that forms at the edge of a roof and prevents melting snow (water) from draining off the roof. The water that backs up behind the dam can leak into a home and cause damage to walls, ceilings, insulation and other areas.
Basically, the excess heat that is leaving your home through the attic melts the snow at the point where the roof meets the snow. The snow on the rooftop that is above 32 degrees will melt. As the water flows down the roof it reaches the portion of the roof that is below 32 degrees and freezes…at thus we have an “ice dam”. The water then begins to back up the roof and gets under the shingles and finds any crack or opening (very often at the nails) and leaks into the house.
What action should be taken: Remove snow from the roof. This eliminates the main ingredient necessary for the formation of an ice dam. A”roof rake” or a push broom can be used to remove snow. Or you may need to hire a local handyman to remove the snow.