![]() ![]() That means even in areas where snow on the ground doesn’t build above a few inches, the snow on roofs can be quite sizable. ![]() ![]() If fluctuating temperatures keep dipping beyond freezing and then rising again, the snow can melt and refreeze several times, which adds ice and even ice dams to the roof’s load. The snow on a building’s roof can build slowly, over many months, as smaller snow flurries accumulate in the absence of snow removal protocols. It’s important to note that avalanching is a concern even in areas that don’t typically see blizzards or large snowstorms during the winter. Instead, small amounts of the snow and ice melt off slowly – and safely. Even when it’s not harmful, snow that slides off a roof in large pieces is a nuisance. Contrary to popular belief, snow guards don’t simply hold snow in place. Avalanching snow from commercial rooftops has been shown to injure tenants and passerby, damage ground-mounted building mechanicals and vehicles, and destroy landscaping. Snow guards are used to prevent accumulated snow and ice from sliding onto the ground below all at once, which is a huge safety concern. Snow guards can protect people on the ground from dangerous falling snow and ice. ![]()
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