Yalu energy Inc. uses only well designed, lightweight yet strong and durable racking. It should be capable of withstanding Ontario winter climate as well as heat and humidity during summer months. We prefer to use racking that is constructed of high strength, anti-corrosion anodized aluminum, with stainless steel fasteners. We choose to use mounting foot that has been designed for maximum strength. To avoid extra protection to the roof, we select heavy duty, black power coated water resistance UV resistant flashing.