One of the biggest concerns in the winter time is the weight of the snow as it remains on roof tops and buildings for days and even weeks. The weight of the snow and ice that has formed can weaken the structure of your roof.
As a result you could end up with leaks in your home or even the roof area over part of the structure collapsing. One of the benefits of snow roof systems is that they offer protection against this.
How do Snow Roof Systems Work