Roll roofing is an economical asphalt-based roofing material manufactured and sold in large rolls rather than individual shingles, typically used for low-slope applications, sheds, garages, or other secondary structures where cost matters more than long-term durability or premium appearance.
This material shares some composition similarities with asphalt shingles, using an asphalt-saturated base with mineral granule surfacing, but is manufactured and installed in continuous rolled sheets rather than individual overlapping shingle pieces.
Because roll roofing generally offers a shorter expected lifespan and less refined appearance than shingle or membrane alternatives, it’s typically reserved for applications where these tradeoffs are acceptable given the material’s lower cost.
What Does Roll Roofing Involve?
- Asphalt-saturated base material
- Mineral granule surfacing for UV protection
- Installation in continuous rolled sheets
- Nail and adhesive or torch-applied seaming methods
Why Is Roll Roofing Important?
For low-cost secondary structures like sheds, garages, or utility buildings where minimizing expense matters more than achieving a premium appearance or maximum longevity, roll roofing offers a practical, affordable weatherproofing solution that’s relatively simple to install even for less experienced installers. This accessibility and low cost keep roll roofing relevant for these specific, budget-conscious applications.
Because roll roofing typically has a shorter expected lifespan, often ten to fifteen years, than standard asphalt shingles or membrane alternatives, it’s generally not recommended for a primary residence’s main roof where longer-term durability and appearance matter more significantly. Understanding these limitations helps ensure the material is applied only where its tradeoffs make practical sense. This clear-eyed assessment helps ensure the material is used appropriately rather than in situations it wasn’t designed for.
Roll Roofing vs. Modified Bitumen
Roll roofing is a more basic, economical asphalt product suited to secondary structures. Modified bitumen offers polymer-enhanced performance and greater durability, generally the more appropriate choice for a primary structure’s low-slope roofing needs despite its higher cost.