Polycarbonate, or plastic snow guards can also be referred to as snow jax, snow stops, snow-guards, snow brackets, snow blocks or snowguards. Snow guards are typically installed on metal roofs of commercial buildings to prevent snow from falling on customers, vehicles, or any damageable property. Residential customers can benefit from less damage to roof vents and the overall peace of mind of having a safer roof.  Offering a full line of roof snow retention products since 1976, Iceblox, Inc, d.b.a. SnoBlox-SnoJax is a leader and innovator of the snow retention industry. We welcome you to explore our full line of professionally tested snow retention products.