ICE DAMS WARNING
A WINTER FREE OF ICE DAMS
Ice dams are a common sight in Canada’s long cold winters, but is this normal?
Ice dams can be sign of serious problems with your roof system.
They can cause damage both in your roof, inside your home, and anything it falls on.
HOW DO ICE DAMS FORM?
Did you know that more than 30% of heat in the house is lost through the roof?
As heat escapes from the living space through the ceiling insulation, the attic space gets warm enough to melt the bottom layers of snow on top of the roof.
When the water reaches the frigid air on the gutters, it freezes and creates ice dams, which only grow as the melting continues.
WHAT PROBLEMS CAN ICE DAMS CAUSE?
- They can cause The water to leak under the shingles
- The water can cause leakage in the attic, soffit and exterior wall.
- As the ice dams grow the roof, they can causewater backing up and leaking into the house causing water damage to walls, ceiling, floors, insulation and other areas.
- Ice dam formation can get very heavy and cause eavestrough falling, property damage, and even structural collapse.
- Icicle falling and ice formation on the ground can be a real safety hazard for the occupants.
- The water can damage the electrical wire, which can lead to a serious risk of electrical shock and possibility of fire.
- They can also cause unwanted moisture and resultant mold, Whic can cause serious respiratory problems for the occupants
HOW TO PREVENT ICE DAMS?
Most of the heat loss through the ceiling is caused from the lack of insulation in the ceiling and attic, around chimney openings or electrical fixtures.
- Ventilate the attic through the vented soffit, allowing the heat to escape from ridged vent, roof vent or gable vents.
- Insulate the living space well to prevent heat loss through the ceiling.
- Insulate and seal the small light fixtures openings or other small openings in the attic area.
- Installing heating cables at the edge of the roof and leaf guards on eavestrough.