Roll roofing offers a low-cost option for covering sheds, porches, and low-slope roofs. This guide explains typical material prices, labor costs, and factors that influence total project price. By understanding the main options and common installation scenarios, homeowners can estimate a realistic budget and compare quotes from contractors.
What Roll Roofing Is And When It Makes Sense
Roll roofing refers to wide sheets of asphalt-saturated felt or fiberglass exposed to weather after installation. It is generally intended for low-slope roofs (usually 2:12 or flatter) and short-lived structures or budget-minded projects. Roll roofing is inexpensive compared with traditional shingles or metal, but it has a shorter lifespan and limited design options. It is commonly used on sheds, garages, accessory buildings, porches, and some additions where a quick, economical roof is desired.
Average Material Costs By Type
Material prices vary by type, thickness, and reinforcement. Typical ranges include:
- Asphalt Roll Roofing: 20 to 40 cents per square foot (SF).
- Modified Bitumen Roll: 60 to 90 cents per SF.
- Fiberglass- or Asphalt-Backed Roll: 40 to 70 cents per SF.
These material costs usually exclude underlayment, flashing, nails, and fasteners. Thicker or higher-quality rolls raise both price and expected lifespan. For contrast, conventional asphalt shingles typically cost more per square foot than basic roll roofing, while metal or single-ply membranes cost significantly more yet offer longer lifespans.
Labor And Installation Costs
Labor is influenced by roof size, accessibility, and local wage rates. Typical installed costs (materials plus labor) for roll roofing are:
- Basic Asphalt Roll: around $1.50 to $2.50 per SF installed.
- Modified Bitumen Roll: around $2.50 to $4.50 per SF installed.
- Edge Flashing And Accessories: additional per-project costs depending on roof complexity.
As with any roof, larger projects, steeper pitches, or tight access can raise labor time and total price. DIY installation can cut material labor costs but may compromise warranty and durability if not done correctly.
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Other Factors That Affect Price
- Roof Size: Cost scales with square footage; larger sheds or patios add up quickly.
- Roof Slope And Access: Steep or hard-to-reach roofs require more time and equipment.
- Underlayment And Sealants: Extra layers add to both material and labor costs but improve moisture protection.
- Flashing And Edges: Corner and edge details require metal or plastic flashing, increasing material and labor.
- Roof Condition: If the deck or substrate needs repair or cleaning, costs rise.
- Climate and Warranty: Harsh climates or extended warranties can influence product choice and price.
Pros And Cons Of Roll Roofing
- Pros: Very low upfront cost, quick installation, simple repairs, minimal roof prep on small structures.
- Cons: Shorter lifespan (often 5–15 years depending on material and climate), limited color and texture options, reduced long-term value compared with shingles or metal, less insulation and wind resistance on exposed edges.
The choice often comes down to budget, expected roof life, and how much labor one is willing to invest in maintenance and occasional repairs.
Cost Scenarios: Quick Examples
- Shed Roof (200 SF, asphalt roll): Material $40–$80; Installed $300–$500; Total roughly $340–$580.
- Garage Porch Cover (400 SF, modified bitumen): Material $240–$360; Installed $1,000–$1,800; Total roughly $1,240–$2,160.
- Small Pitched Extension (600 SF, roll roofing with flashing): Material $240–$420; Installed $1,200–$2,700; Total around $1,440–$3,120.
These examples illustrate how material type and project size influence overall pricing. Always obtain multiple written bids to compare materials, labor, and warranties.
Maintenance And Longevity Tips
- Inspect Regularly: Check for blistering, cracks, and loose edges after heavy storms or temperature swings.
- Keep Gutters Clear: Prevents water pooling and edge deterioration at the eaves.
- Address Repairs Promptly: Small leaks or damaged seams can escalate quickly if ignored.
- Choose Quality Flashing: Properly installed flashing reduces water intrusion around chimneys, vents, and transitions.
Proper maintenance can maximize the limited lifespan of roll roofing and help avoid early replacement costs.
How To Get An Accurate Estimate
To secure a reliable quote, homeowners should provide: roof dimensions, slope, current deck condition, desired material type, location, and any existing warranties. Request itemized estimates that separate material costs, labor, flashing, underlayment, and waste disposal. Verify contractor credentials, read recent reviews, and confirm weight limits on existing structures before choosing a material.
Frequently Asked Questions
- Is roll roofing a good long-term option? It is cost-effective for short-term needs or budget projects but generally not ideal for long-term protection on primary residences.
- Can I install roll roofing myself? DIY is possible on small, simple roofs, but professional installation ensures better sealing and warranty coverage.
- Does color affect roll roofing cost? Color options are typically priced similarly, but darker colors may heat more and influence performance in hot climates.