Snow Guards are commercial grade rooftop devices that prevent the dangerous movement of snow and ice by allowing the snow or ice to melt completely or drop off in small amounts. Our clear plastic snow guard products help prevent damage from avalanching snow and ice while remaining practically invisible. Snow guards are a practical, cost-effective addition to any sloped metal roof in winter climates. We invented the first polycarbonate (plastic) pad style snow blocks and we continue to be the leader in snow stop, snow block, ice stop and snow guard products.