Snow Is a Snow on a Moderate Year

Sammy: I've made an unscientific analysis over the last 16 years. Should you have a composition roof or should you have a metal roof? Sammy: In some years when it's moderate snow, I think I should,. I should have a metal Roof because it just slides off and you don't have to worry. And then I start thinking, yeah, but one of my neighbors because of the unequal pressures of the on the roof, sometimes the nails pop out  and water goes through the nail hall.