Zaleski Snow-Guards for Roofs, Inc. has the most affordable snow guards you can purchase. The Zaleski snow guards are manufactured for every type of roof available: metal, asphalt, glass, pvc, rubber, slate, tile and tpo. In this business, we have seen a lot of ineffective snow guard systems in use. There are pipe type systems that are installed at the bottom of the roof near the eaves. When a heavy snowfall is on the roof, and part of the snowpack starts to slide, there is only a railing at th