Leaks in the winter time may be caused by what are called "ice dams." Ice dams occur when ice a snow build up in the gutters or on any horizontal surface and the escaping warmth from your home causes the build up to melt and leak inside. Because ice dams travel upwards, and your home is designed only to shed water in a downward direction, ice dams are difficult to prevent.

Indications of an ice dam are wet spots on the ceiling or walls, particularly near an outside wall.  You should report all such leaks to the Management Company as soon as possible.

Never use shovels, rakes or picks to remove ice or snow from the roof or gutters. You could permanently damage the gutters and shingles and will responsible for their replacement.

Ice damming is an engineering flaw it is not a defect in the roof itself.

If you are experiencing ice damming, a suggestion is to have your attic insulation inspected to determine if it is adequate.