If you’re searching for an affordable and easy roofing option—especially for a shed, garage, or flat roof—roll roofing might be exactly what you need. In this post, we’ll explain:
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The basics of roll roofing and how it compares to traditional shingles
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Why roll roofing for flat roof projects is practical
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The advantages and drawbacks of asphalt roll roofing
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Helpful installation tips, real-world examples, and how to know when to call an expert
Understanding Roll Roofing
Roll roofing is available in long strips—typically 36 inches wide and up to 100 feet long—made from asphalt-saturated felt with a granular coating. It’s a cost-effective, simplified alternative to traditional asphalt shingles and is especially suited for flat roof or very low-slope surfaces.
Ideal for small buildings, roll roofing is applied in overlapping sheets, often adhered or nailed down. Proper sealing at overlapping seams and ensuring good drainage are essential for keeping it watertight and reliable.
Types of Roll Roofing:
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Asphalt Roll Roofing — Most common, inexpensive, and flexible
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Mineral-Surfaced — Adds a protective granule layer
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Saturated Felt — Used as lower-level underlayment or temporary coverage
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Rubber Roll Roofing — Durable and ideal for flat roofs, often made from recycled materials
Why Choose Roll Roofing?
1. Cost Efficiency
Roll roofing is significantly cheaper than asphalt shingles, metal roofing, or tile. Combined with potential DIY installation, it’s ideal for tight budgets.
2. Quick, DIY-Friend Installation
Installing roll roofing is straightforward—roll it out and fasten it in place. Basic tools are sufficient, making it accessible for simple, smaller-scale projects.
3. Lightweight and Structural-Friendly
It’s lightweight, placing minimal stress on structures. Perfect for outbuildings, carports or older structures that may not support heavier roofing materials.
4. Great for Flat Roofs or Low Slopes
Engineered for roll roofing for flat roof applications, it provides a smoother, seamless surface with fewer seams—reducing potential leak points.
5. Temporary or Short-Term Use
If your goal is temporary protection or a provisional roof until a more permanent solution is installed, roll roofing is a practical option.
Drawbacks of Roll Roofing
1. Short Lifespan
Expect only 5–8 years of service life—far less than asphalt shingles or metal roofing, which can last decades.
2. Lower Durability
Its thin composition makes it vulnerable to punctures, hail damage, UV degradation, and high winds—especially in exposed areas.
3. Limited Aesthetic Appeal
The simple appearance limits styling options. It’s better suited for utility structures than main homes where appearance matters.
4. Not Suitable for Steep Roofs
Only appropriate for flat or very low-slope roofs. On steeper pitches, water runoff and shingle systems are more reliable.
5. Increased Risk of Leaks
Seams, fasteners, or punctures can become weak points if not properly sealed or installed—especially where water pools or drainage is inadequate.
Is Roll Roofing Right for You?
Ideal Scenarios:
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Budget roofing for sheds, outbuildings, or garden workshops
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DIY or limited-scope roof projects
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Temporary roofing needs before investing in more permanent materials
When to Look Elsewhere:
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If your roof requires durability beyond 8 years
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In areas with high winds, heavy rainfall, or intense sun
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If visual appeal and long-term performance are priorities
FAQ: Roll Roofing Basics
Q: How does asphalt roll roofing differ from asphalt shingles?
A: It’s thinner, cheaper, and quicker to install—but lacks the longevity and appearance of shingles.
Q: Can I install roll roofing myself?
A: Yes, with basic tools and moderate skill. Just ensure proper drainage setup and seam sealing.
Q: How long does it last?
A: Typically around 5–8 years, depending on climate and exposure conditions.
Q: Is it waterproof for flat roofs?
A: When installed correctly with sealed seams and good drainage, yes—but it’s not as durable as rubber or TPO roofing systems.
Installer Tips for Best Results
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Confirm the roof pitch is low or flat.
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Ensure proper drainage to avoid ponded water.
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Overlap strips by at least two inches and use high-quality adhesive or seam tape.
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Keep foot access minimal to prevent damage.
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Schedule annual inspections and plan for eventual replacement.
Alternatives to Consider
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Architectural Asphalt Shingles — More durable (15–30 years) and aesthetically pleasing
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EPDM / TPO Membranes — Excellent flat-roof performance and waterproofing
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Metal Roofing — Long-lasting, low-maintenance, but higher initial cost
Final Thoughts
Roll roofing—especially asphalt roll roofing—can be an excellent choice for simple, low-cost roofing needs, particularly for flat roof surfaces on non-critical buildings like sheds and garages. It offers ease of installation and affordability. But if you desire longevity, aesthetics, and higher resilience, other roofing materials may be a better fit.
Need Guidance? Contact ProTec Inspections Today
Thinking about roll roofing for your flat roof project? Unsure whether asphalt roll roofing suits your needs—or if another roofing type is a better long-term match? Reach out to ProTec Inspections for expert advice. Their professional inspectors can evaluate your roof structure, assess your weather exposure, and help you make a more informed roofing choice based on your goals and budget.
📞 Contact ProTec Inspections today for a complimentary consultation—a crucial step whether you opt for roll roofing or choose a more durable roofing solution.