When it comes to roofing, flat roofs provide a cost-effective and versatile solution. What Is a Flat Roof? A flat roof is a roofing system that’s nearly level, with a slight pitch to allow water drainage. Benefits of Flat Roofs Best Materials for Flat Roof Systems 3. PVC (Polyvinyl Chloride): https://flat-roof-installation-and-repair.trustedstandard.com