What we do know: Research results prove frozen over, clogged roof drains are a leading cause of roof and interior building damage presenting an imminent threat of roof collapse when left unattended. Nationally recognized Certified Facility Education programs,US Government winter advisory sites, along with the largest risk management companies in the world recommend Pre & Post Storm clearance of snow, ice and debris from your flat roof drains. Our roof drain maintenance markers make flat roof drains highly visible which in turn cuts the cost of regular inspections. Our product is built to last the life of the roof. Marine grade aluminum alloy impervious to fresh water applications matched with a sub assembly comprised of a high grade stainless steel that’s been scientifically paired best compatibility for corrosion resistance. A quality product that delivers year after year, storm after storm.