In these images you can see how Gonano actually bonds with the shingle instead of being applied over the shingle. Most roof coatings that get applied on the shingle just end up trapping moisture in-between the shingle and the coating. Where as Gonano uses nanotechnology to bond with the shingle and creates a hydrophobic layer that keeps water out, but allows air to still pass through. Gonano dose this while also strengthening any shingle up to a class 3-4.