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May 2, 2018
common winter roofing problem 3

Common Winter Roofing Problems:
ICE DAMS & CONDENSATION

With the season we’re now in and coming up quickly on the spring ice damming and melt/thaw cycle, here are some common winter roofing problems you should be aware of.

Contact us today if you have any issues with your exteriors.


Ice Dam

A COMMON ISSUE IN THE WINTER IS STAINING OR DRIPPING AROUND BATHROOM FANS DUE TO ICE DAMMING.
  • Large volumes of snow and ice forming along the eave of the roof
  • Ice backing up inside the eavestrough and downspouts
  • Causes roof leaks

Improper Ventilation System

  • Attics need to be able to circulate the air, which helps clear out moisture in the attic
  • Venting consists of intake (usually at the soffit), and exhaust (usually at the ridge)

Ducting

A COMMON ISSUE IN THE WINTER IS STAINING OR DRIPPING AROUND BATHROOM FANS.
  • Fan exhausts warm moist air out of the roof
  • If the ducting is improperly insulated or sealed, it can allow the warm air to mix with the cool air in the attic and condensate

Insulation

IMPROPER INSULATION AND / OR VAPOUR BARRIER (SIDING & ROOF).
  • Insulation needs to be evenly distributed inthe attic
  • Attic hatch should be insulated and sealed with gasket strip to keep warm air from the house from mixing into the attic
  • All protrusions (fans, pot lights, etc.) should be sealed with poly

Temperature

TEMPERATURE AND HUMIDITY LEVEL OF THE UNIT.
  • Residents that keep the temperature up higher during the winter are more likely to experience condensation in the attic
  • Humidity levels need to be adjusted as required over winter months to keep condensation from building up

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