How a foam roof works
Two-component polyurethane foam is sprayed directly onto the deck, expanding into a continuous monolithic insulating layer. Once the foam is cured and surface-prepped, the elastomeric coating is applied in two coats, with granules embedded into the top coat for foot traffic and additional UV protection.
The coating is what does the waterproofing. The foam provides the thermal barrier and the substrate. Properly maintained, the system can last decades.
