Built-up roofing is among the most waterproof membranes on the market. It is a multi-layered system that overlaps and is seamless, so there are few opportunities for water to penetrate the surface. The installation is simple, and the projects typically don’t take as long, as they don’t need ballasts or fasteners. The materials used in built-up roofing make it among the most durable membranes on the market. Because of that, they can be cost-effective and low maintenance long term. Find out if a built-up roof will work for your project with an inspection from Warren Roofing®.