With over 20 years of industry experience, every Sno Gem® snow guards product is the latest in cutting edge design and engineering technology. Offering polycarbonate, metal, non-penetrating “clamp to seam” or deck mount/membrane bar snow retention systems for metal, slate, shingle/tile, and membrane roof systems in virtually any color, Sno Gem® is your one source for effective and aesthetically pleasing snow guards.