GacoRoofFoam is a closed cell monolithic polyurethane which bonds to the substrate of any shape, size or slope of roof and becomes part of the structure. GacoRoofFoam creates a seamless barrier which can be varied in thickness to create a positive slope to drain on flat roofs. It is manufactured in a variety of densities to accommodate even the most unique roof designs. GacoRoofFoam creates a seamless barrier which can be varied in thickness to create a positive slope to drain on flat roofs.