Rolled asphalt roofing remains a popular choice for many homeowners and commercial buildings due to its affordability and ease of installation. However, understanding the life expectancy of rolled asphalt roofing is essential for proper maintenance and timely replacement planning. This article explores the factors influencing the durability of rolled asphalt roofing, compares it with other roofing materials, and provides practical insights for maximizing its lifespan.
| Roof Type | Average Life Expectancy | Key Factors Impacting Longevity |
|---|---|---|
| Rolled Asphalt Roofing | 5 to 10 years | Installation quality, weather exposure, maintenance |
| Asphalt Shingle Roofing | 15 to 30 years | Material grade, climate, ventilation |
| Metal Roofing | 40 to 70 years | Metal type, coating, upkeep |
What Is Rolled Asphalt Roofing?
Rolled asphalt roofing, also recognized as roll roofing, consists of long strips of asphalt-saturated felt or fiberglass mats with an embedded mineral surface. The material is designed to be unrolled and applied directly onto the roof deck, providing a quick and cost-effective roofing solution often used on low-slope or flat roofs.
Typical Life Expectancy of Rolled Asphalt Roofing
Rolled asphalt roofing typically lasts between 5 to 10 years. This shorter lifespan compared to other roofing materials is attributed to its thin construction and vulnerability to environmental factors. While the material is budget-friendly, it is not engineered for long-term durability in harsh climates or high-traffic roof areas.
Factors Affecting the Longevity of Rolled Asphalt Roofing
Material Quality and Type
The quality of the asphalt felt and the types of minerals used in the surface coating significantly affect performance. Premium rolled roofing with fiberglass mats will generally last longer than those made with organic felt. Additionally, some products include enhanced UV-resistant coatings to slow degradation.
Installation Methods
Proper installation is crucial for maximizing lifespan. Overlapping rolls correctly, using proper adhesives or fasteners, and ensuring a clean, smooth roof deck can prevent leaks and premature wear. Poor installation can reduce the roof life by several years.
Climate and Weather Conditions
Exposure to extreme weather such as heavy rainfall, UV radiation, ice, and high winds can accelerate wear. Rolled asphalt roofing tends to degrade faster in regions with intense sunlight or temperature fluctuations, leading to cracking and brittleness.
Roof Slope and Drainage
Rolled asphalt roofing is best suited for low-slope roofs. However, insufficient drainage or pooling water can shorten its life by causing moisture damage. Ensuring the roof has proper slope and drainage reduces risk of leaks and material breakdown.
Maintenance and Repairs
Regular inspection and timely repairs of blisters, tears, or punctures help extend roof life. Neglecting minor damage allows water infiltration, fostering rot and material deterioration.
Comparing Rolled Asphalt Roofing to Other Roofing Types
| Roofing Material | Average Lifespan | Cost Range (per sq. ft.) | Common Applications |
|---|---|---|---|
| Rolled Asphalt Roofing | 5 – 10 years | $0.50 – $1.50 | Low-slope residential, sheds, garages |
| Asphalt Shingles | 15 – 30 years | $1.00 – $4.00 | Residential homes, steep roofs |
| Metal Roofing | 40 – 70 years | $3.00 – $8.00 | Commercial buildings, residential |
| EPDM Rubber Roofing | 20 – 30 years | $3.50 – $6.00 | Flat commercial roofs |
Rolled asphalt roofing is a cost-effective but short-term solution when compared to asphalt shingles or metal roofs that offer longer durability and better weather resistance.
Signs Rolled Asphalt Roofing Needs Replacement
- Visible Cracking or Blistering: Indicates material degradation due to UV exposure and aging.
- Water Leaks or Stains: Water intrusion points often mean the roof has lost its protective seal.
- Surface Granule Loss: Excessive mineral loss exposes the asphalt layer to accelerated wear.
- Peeling or Curling Edges: Suggests compromised adhesion and weak bonding.
- Excessive Wear in High Traffic Areas: Foot traffic over rolled roofing can cause premature damage.
Tips to Extend Rolled Asphalt Roofing Life
Schedule Regular Inspections
Professional inspections every 1-2 years help identify small problems early, preventing costly repairs and extending roof life.
Maintain Roof Cleanliness
Removing debris, leaves, and dirt prevents moisture buildup and mold growth.
Repair Minor Damage Promptly
Patching small cracks or tears stops water infiltration and structural damage progression.
Apply Reflective Coatings
UV-reflective roof coatings can reduce heat absorption, limiting asphalt deterioration and making the roof last longer.
Improve Roof Drainage
Keeping gutters and downspouts clear ensures proper water runoff, reducing water retention on the roofing surface.
Cost Considerations and Budgeting for Replacement
Rolled asphalt roofing’s initial low cost may be appealing, but its shorter life expectancy means more frequent replacements. Homeowners should consider total cost of ownership, factoring in maintenance, repairs, and eventual replacement timing.
| Roofing Material | Approximate Installation Cost | Typical Lifespan | Replacement Frequency in 30 Years |
|---|---|---|---|
| Rolled Asphalt | $0.50 – $1.50 / sq. ft. | 5-10 years | 3-6 times |
| Asphalt Shingles | $1.00 – $4.00 / sq. ft. | 15-30 years | 1-2 times |
| Metal Roof | $3.00 – $8.00 / sq. ft. | 40-70 years | Less than once |
Environmental Impact and Sustainability of Rolled Asphalt Roofing
Rolled asphalt roofing is derived mainly from petroleum-based materials, making it less environmentally friendly than metal or recycled roofing. Its shorter lifespan also contributes to increased waste. However, some manufacturers are producing more eco-conscious options, incorporating recycled materials and offering recyclable roofing options.
Common Applications for Rolled Asphalt Roofing
- Low-slope residential roofs: Garages, porches, and sheds often use rolled roofing as a budget-friendly covering.
- Temporary roofing solutions: When a quick fix or affordable covering is needed.
- Secondary roofs and structures: Used in areas where long lifespan is not crucial and cost savings are prioritized.
Final Considerations for Choosing Rolled Asphalt Roofing
While rolled asphalt roofing offers low upfront costs and easy installation, it should be chosen with a clear understanding of its limited life expectancy of 5 to 10 years. Homeowners should weigh maintenance needs, expected lifespan, and suitability for their climate and building structure.