In chilly climates, leaks usually happen alongside the eaves because of ice damming. When heat leaking into the attic melts snow over the roof, the meltwater can refreeze when it gets all the way down to the colder overhangs, forming ice dams. Synthetic underlayment generally is a more sensible choice https://succeedinlife.co.uk/telephone-answering-service-by-paperclip/