The thickness of the material is a technical detail that gutters-contractors will explain to you. Most residential systems use 0.027-inch or 0.032-inch aluminum. While the thinner option is cheaper, the thicker gauge is much more resistant to denting from ladders or falling branches. A knowledgeable contractor will help you weigh the cost versus the benefit based on your specific envi... https://kkroofspecialist.com.sg/gutters-contractors/