Is It Necessary to Shovel Snow Off a Roof After a Big Storm?
Navigating the aftermath of a significant winter storm can be daunting, especially when it comes to dealing with accumulated snow on your roof. Many homeowners are curious about whether it is necessary to remove this excessive snow, especially if their home was designed to shed snow with the help of wind. In this article, we will explore the necessity of roof snow removal, potential risks, and tips for properly managing snow accumulation.
Understanding Roof Design and Snow Accumulation
Matt has experience living in northern Minnesota and has found that his home, which was built with a high load rating and designed to shed snow, rarely requires significant snow removal. In his twenty years, he only had to tackle the task once, about a decade ago, when snow accumulated around the furnace vent/flue and caused a safety error. This situation was unexpected and only happened due to a lucky thought.
While Matt's experience is not typical, it highlights the effectiveness of proper roof design. However, not everyone's home is as fortunate. Some homeowners in his area have to take matters into their own hands when fallen snow doesn't get cleared away by wind, particularly in older houses or those situated in densely tree-filled areas. These homeowners often opt for more manual methods, such as dragging snow with a long pole and rake, to clear their roofs.
The Risks of Excessive Roof Snow Accumulation
Roof snow can be incredibly heavy, with a single gallon of water weighing eight pounds. Snow, being fluffy, might not weigh quite as much, but the weight distribution can still be significant, especially in areas where the roof slope is minimal. Excessive snow can cause the roof to collapse, especially in cases where the roof's load rating is exceeded.
In addition to the structural risk, water vapor in the air can accumulate and seal moisture in the vents, leading to potential damages and even poisoning from gas buildup. Gas can get trapped under sealed vents and may lead to carbon monoxide poisoning or, in extreme cases, an explosion.
Methods for Safely Removing Roof Snow
If you are concerned about the safety of your home, especially if you are unsure of your roof's load capacity, it might be a good idea to remove the snow using a snow rake. These tools have long handles that make it easier to pull snow off the roof, even if the angle is steep. Starting from the edge and working your way down ensures you don't miss any spots and might avoid the risk of structural damage.
It is also important to consider the height of your vents and the weight the roof can hold. If the snow has accumulated to a point where it seals the vents and traps moisture, it could be hazardous. In such cases, you will need to remove as much snow as is safe to prevent potential issues.
Conclusion and Safety Tips
While not every home requires roof snow removal, it is a critical step to take if you are concerned about the safety of your property. Proper planning and using the right tools can help ensure that the task is completed safely and efficiently. Always prioritise safety, and if you are unsure, it might be best to seek professional advice.
By understanding the risks and taking necessary precautions, you can protect your home and family from potential hazards during winter storms.