Today, most industrial buildings are constructed with flat roofs. Industrial buildings are spaces for manufacturing purposes. Manufacturing involves the presence of human resources, and the product of manufacturing is goods. People in manufacturing, from directors to workers, demand the most comfortable working conditions. Thoroughly controlled storage conditions are required for any goods. The minimum conditions for storing goods include warmth or cold, absence of moisture, and mold. Few roofing materials for flat roofs can boast excellent thermal performance, durability, and being lightweight and monolithic like polyurethane foam.