RFL (Resorcinol Formaldehyde Latex) fabric is extremely durable and tightly woven. Compared to other asphalt fabrics, it is heavy and stiff and may tax a tarping system that is not specifically designed for heavy-duty use. RFL tarps have a very high temperature rating, which makes them an excellent choice for hot asphalt. On most systems, you will want to go a couple feet long to leave some tarp on your roller, and a couple inches shorter than the width of your roller. Custom sizes are available if you don't see what you're looking for. Many sizes are cut to order and might not always be able to be returned or exchanged.