Posted: Nov 26, 2019 How Do Snow Guards Work? Part 1: Pad-Style By Brian Stearns How do snow guards work? Believe it or not, this is a highly debated question within the construction and snow retention industries. It’s a common misconception that snow guards are intended to break up snow and ice into little pieces, basically cut up the mass, so that it comes off in smaller pieces. It’s easy to understand how people with limited knowledge of snow retention might think this.