Corners are recommended to be fitted within 150mm of the guttering with a fascia bracket. This will prevent the gutter from sagging and ultimately leading to a slower flow rate. With a guaranteed life span of at least 100 years, installers can be assured that this product is built to withstand the most troublesome weather conditions while the ease in which they can be installed reduces costs significantly. The 90-degree external corner manufactured by Zinc Gutta is a vital addition to your drainage system. Corners play a crucial role as they divert the guttering around an angle on the roof of your property to maintain a sustained and solid unit. Please note: One joint must be ordered for each length of gutter, gutter section and corner.