Asphalt Roofing Systems
GenFlex asphalt is designed to work the way you do — fast, tough, and built to last.
GenFlex asphalt roofing systems are engineered for real-world performance. With both SBS and APP modified bitumen options available, these systems offer the flexibility to meet your installation needs. Designed with built-in redundancy, they provide multiple layers of protection to withstand harsh climates, demanding timelines, and the unexpected. GenFlex delivers proven protection, rugged durability, and the confidence to get the job done right — and keep it that way.
SBS GenFlex SBS modified bitumen systems use a rubber-based polymer technology that delivers strength and flexibility, even in extreme cold. With multiple install options and outstanding durability, it’s the go-to solution when the job demands both performance and versatility. GenFlex SBS is one of the most versatile low-slope solutions in our lineup. It’s compatible with a wide range of application methods — including cold-applied, torch, self-adhered, mechanically fastened, and hot asphalt — giving your crew the freedom to install it your way, without compromise.
APP GenFlex APP systems are designed for speed and long-term UV resistance, with a thermoplastic bitumen blend that can handle the heat. Ideal for torch-applied efficiency and open commercial decks, it's the reliable choice for hardworking crews in demanding conditions. GenFlex APP delivers the strength and weather resistance you expect from asphalt, with the efficiency and clean handling you need on the job. Formulated with premium asphalt, our APP membranes install smooth, stay straight, and resist hooking — so your lines stay clean and your crew stays productive. GenFlex APP gives you a roof that performs tough and looks sharp for the long haul.
Your Go-To Modified Bitumen Systems
From challenging climates to fast-turn installations, GenFlex SBS and APP roofing systems deliver proven performance with the flexibility to fit your job.
| Feature | GenFlex SBS | GenFlex APP |
|---|---|---|
| Material Advantage | Rubber-modified asphalt for flexibility and movement | Plastic-modified asphalt for UV resistance and durability |
| Best For | Cold climates, complex roofs | Warm climates, open decks |
| Flexibility | High — ideal for freeze/thaw cycles and shifting structures | Moderate — more rigid and stable for long-term wear |
| UV & Heat Resistance | Moderate — best with granules or coating | High — designed for direct exposure |
| Installation Options | Cold-applied, torch-applied, or hot asphalt | Torch-applied or cold-applied |
| Surface Types | Smooth or granule-surfaced sheets | Smooth or granule-surfaced sheets |
| Go-To Applications | Schools, hospitals, retrofits, and detailed roofs | Warehouses, retail centers, large-scale new construction |
Asphalt That Works Like You Do.
Whether you're roofing in the cold or torching in the heat, GenFlex gives you the confidence to get in, get it done, and confidently move to the next job — with performance that lasts. Visit the GenFlex Asphalt Brochure to view more product details, including the product list. For more information or to place an order, please contact your GenFlex representative.
Document Links
Brochures