The main feature of metal seam roof panels is the absence of open seams through which they can wear out over time. The number of types of seam panels of this type is also growing, and today there are already options for panels without clips. This feature allows you to keep the roof waterproof for 20 years and more without significant maintenance More info https://monarchyroofing.ca/standing-seam-metal-roofing/ on this site wish you good luck.