The Basics of Flat Roofs Flat roofs are constructed with specialized materials to ensure durability and resistance to weather. Why Opt for Flat Roofs? Flat roofs are cost-effective, requiring fewer materials and less labor than pitched roofs. Materials Used for Flat Roof Installation 1. EPDM (Ethylene Propylene Diene Monomer): https://flat-roof-installation-and-repair.trustedstandard.com