Does Dura-Foam embed granules in the coating surface?
Dura-Foam, inc. does not recommend embedding granules in the coating for several important reasons. First, granules become dislodged over time and leave behind weak points in the coating surface. Granules are initially tossed onto wet coating by hand or with a hopper. When the granules hit the wet coating surface, they partially sink into the coating becoming embedded. As the roof ages, granules come loose and leave behind small holes or divots. These weak spots in the coating surface do not meet our standards for minimum coating thickness. Second, our high quality roof coatings are not required to carry granules. Some inexpensive coatings require granules to pass fire and durability ratings. Our high quality coatings pass all fire and durability ratings without a need for granules. Third, granules complicate the re-coat process creating unnecessary additional expense to property owners. Excessive coating is required to cover the rough surface texture of a granule roof leaving the prop
