If you live in Ottawa and the valley you must have seen the layers of snow and freezing rain combination. Sometimes you may think there is a problem with your roof but actually it’s the unpredictable weather that we are having.

If your house is a bungalow and has more than average number of valleys on your roof, get prepared for the snow and ice build up during winter. Any house or building can have ice dams or more than average snow build up.
If you ask what causes ice dams i can explain it briefly. There are many reasons behind ice dams and it changes from house to house. If there is not enough fresh air in your attic, it can build condensation and turn into ice dams. If your vents are covered with snow and attic air is not venting out, it will help ice dams to…