What is spray foam roofing, and how does it differ from traditional roofing materials?

Spray foam roofing is a seamless roofing solution composed of a mixture of polyurethane foam and elastomeric coating, applied directly to the roof surface. Unlike traditional roofing materials like shingles or tiles, which rely on overlapping layers, spray foam roofing forms a continuous, monolithic barrier that effectively seals and insulates the roof.