Many times you will do more harm to the shingles on your roof by trying
to remove the snow than just leaving it there. My neighbor removed the
snow from his roof a couple of years ago to find his roof leaked come
spring which involved a roof repair. It may be a different story if you
have a weak roof with three feet of snow on it. Then you better get it
off and fast. A roof repair come spring is better than no roof at
all.........LOL

Rich