Over a 30 year life span, Polyurethane Foam Roof Systems have proven to provide a cost savings of between 10% and 50% less on average than comparably insulated membrane roof systems. By increasing the thickness of polyurethane foam in low areas and re-sloping the roof to the drains, it will eliminate the ponding of water.
Spray foam will solve the problem. Seamless sprayed polyurethane forms a tight, seamless roofing system. Whether a roof is 10,000 feet or 100,000 feet, there are NO seams, which often allow outside water and air to pass through the roofing system into the building structure. While also eliminating flashing leaks, the spray foam conforms to the substrate and when installed, is a seamless system, ideal for flashing para pit walls, roof penetrations and mounted equipment including vented pipes, HVAC equipment, skylights and cooling towers.