When temperatures linger around -5 and zero degrees Celsius, depending on the amount of snow there is on your shingles, you can see where the snow is melting.
When you set your thermostat to room temperature of 23 degrees Celsius during cold winter months, your insulation keeps the hot air stay inside. If the insulation is 30 + years old, it will become compressed and lose its R Rating. Homes that are 30 + years have serious ice dam issues due to heat loss caused by poor insulation and/or compromised vapour barrier.
Most modern homes have blown insulation in the attic, with a dept of 18 inches once its settled. To maintain your carbon print and keep your home energy efficient, it is highly recommended to upgrade insulation, roof, underlay, ice&water shield and new high flow roof ventilation.
If you spend 20k for instant on new roof, insulation ect… your heating bill will reduce by atleast 35 % and if we calculate that by 20 years, money spent on energy efficiency pays itself off in the long run.
Preventive maintenance is a scheduled service to minimize risks of having water damage caused by snow and ice accumulations on your roof.
Depending on the pitch of the roof, snow may pile up due to design of the roof trusses. When there are walls and valleys are involved, it is venerable to accumulation. Melting snow can turn into ice damming and cause water pooling on your pitched roof. If you have experienced leaks due to ice damming, it is highly recommended to do preventive maintenance on your roof.
Heat loss is another reason why the accumulation of the ice is greater when compared to neighboring houses. When there isn’t significant amount of insulation is in your attic, this can increase your heating bills dramatically. Blue staining and leaks when temperatures drow down to ZERO amd warmer are the signs of heat loss.
Having proper ventilated attic is another important factor. Your attic should be same temperature as the outside. If not there is an issue with your ventilation system. This can cause ice damming and leaks.
I have to admit this past week was extremely crazy. My phone did not stop ringing for the past 5 days because of all the houses that got flooded because of the ice dams.
Homeowners starting to understand the importance of a good quality roof instead of a quick fixer upper. The money they saved on the roof replacement plus few more thousands to the repairs to correct the issues and maybe a new roof. Ice dams does not form on its own. It requires either direct sunlight or heat loss thru your attic to form ice dams. Proper ventilation is one of the issues. When the vents get covered by snow, it makes it harder to vent our or even does not vent out at all. When the hot air gets trapped in your attic if will push back thru the ventilated soffit and start to form ice dams along the gutters. Hot fumes will melt the snow and turn it into ice over night. Eventually it gets bigger and wider. Whenever there is a warmer day, snow melts and it polls up behind the ice dam. It wont take a long time until you can see it dripping from your ceiling.
Here is my advise to the homeowners, don’t try to save couple of hundred dollars during replacing your roof. Make sure drip-edge is installed along all the edges. Depending on the slope of your roof have ice and water shield installed at least 6 feet from the gutters maybe more if needed. And have the rest of the roof covered with felt/tar paper or anything similar.
When we replace a roof our minimum usage of ice and water shield is 6 feet. Regardless of what the slope is, it is our company policy install 6 feet of ice and water shield and 100% felt paper and of course maximum ventilation.