Fiberglass isn’t just for boats and insulation. It’s also been adapted for use in roofing—particularly for rooftop decks. A fiberglass roof consists of layers of reinforcing fiber, polyester resin, and a protective gel coat. It forms a lightweight, virtually seamless roof cover that can be walked on without damage, won’t leak from ponding, and can be walked on without damage. Plus, it can be applied in virtually any color.