Houses are over engineered to support snow load. Unless you have an ice dam or ,a leaky roof, leave well enough alone. At worst, while standing on the ground, use a roof rake to pull the last metre of snow down from the around the eavestroughs.
While eating a muffin and sippy tea, one of our neighbours saw her husband cascade along with a shovelful of snow past her picture window. "Beat watching the National," she said. ":Besides the titanium rods they used to put him back togerhet increased his net worth!"
