CLICKLOCK PREMIUM ALUMINUM STANDING SEAM provides a clean, contemporary look that is architecturally scaled for residential applications. What makes ClickLock a "Premium" standing seam roof? It is manufactured from heavy-duty rust-free .032" aluminum alloy. The 12" wide panels are installed using all concealed fasteners so there's no need for rubber-grommeted screws or nails. The stainless steel fastening clips and screws ensure secure attachment to the roof with no chance for electrolysis between dissimilar metals and no chance for problems resulting from expansion and contraction. Even the accessories for ClickLock are designed to be technically superior to other systems as they also feature all concealed fasteners and allowance for expansion and contraction. For property owners who want the distinction of standing seam but only want the best, ClickLock is the answer.