Composition roofing material, often referred to as composite or asphalt-based shingles, is among the most popular choices in the United States due to its balance of cost, durability, and versatility. This article explains what composition roofing material is, the main types available, how it performs, installation basics, maintenance needs, and cost considerations. Readers will gain a clear understanding of why homeowners and builders choose composition roofing and how to select the right option for a given project.
What Defines Composition Roofing Material
Composition roofing material describes a broad category of roofing products made from a mixture of asphalt, minerals, fiberglass, or organic fibers. The asphalt provides waterproofing and weather resistance, while reinforcing materials add strength and flexibility. Common variants include fiberglass-asphalt shingles and organic-mat asphalt shingles. The term “composite” often implies a blend of materials designed to mimic the appearance of higher-end roofs at a lower price point. Key characteristics include affordability, ease of installation, and wide color and style options.
Main Types Of Composition Roofing
- Fiberglass Asphalt Shingles: Reinforced with fiberglass mats for added strength and fire resistance. Lightweight and resistant to tearing, these shingles are the most common form of composition roofing.
- Organic-Mat Asphalt Shingles: Made with felt or wood fiber underlayment soaked in asphalt. Heavier and thicker, historically favored for durability, though less common today due to environmental considerations.
- Architectural (Dimensional) Shingles: Multi-layered, textured tiles that provide a dimensional look resembling wood or slate. They offer enhanced curb appeal and improved depth perception.
- Non-Banded And Striated Shingles: Simplified textures and patterns that emphasize practicality and lower cost while maintaining performance.
Composition roofing material typically exhibits strong wind resistance, impact resistance, and good waterproofing when properly installed. Modern fiberglass shingles often provide better fire resistance and lighter weight compared with old organic options. Durability depends on factors such as shingle quality, climate, roof pitch, ventilation, and mounting techniques. In harsh UV environments, some products incorporate color-fast pigments and protective granules to reduce fading and surface wear. Regular inspection helps catch loose or damaged shingles before leaks develop.
- Climate: Extreme heat, cold, or freezing-thaw cycles can affect adhesion and granule retention.
- Ventilation: Proper attic ventilation reduces heat buildup that accelerates aging.
- Installation: Correct nailing patterns, flashing, and underlayment choices extend roof life.
- Quality: Higher-grade fiberglass or organic mats with better asphalt formulations tend to last longer.
- Affordability: Lower upfront cost compared with materials like slate or tile.
- Variety: Wide range of colors, patterns, and profiles to suit architectural styles.
- Ease Of Installation: Installed by many roofing professionals with standard equipment.
- Repairability: Damaged sections can often be replaced without replacing the entire roof.
- Lifespan: Typically 15–30 years, depending on product quality and conditions, which may be shorter than some alternative materials.
- Environmental Impact: Organic-mat versions have raised environmental concerns; newer fiberglass products mitigate some issues but still rely on asphalt.
- Granule Loss: Over time granules can shed, reducing UV protection and color vibrancy.
Selection should consider climate, roof design, and budget. Look for certifications such as the UL fire rating and asphalt shingle manufacturers’ warranties. The expected lifespan, warranty terms, and maintenance requirements should align with project goals. Key questions to guide decision-making include: Is wind uplift resistance adequate for the location? Does the product offer a robust warranty? What is the expected maintenance schedule and cost over time?
Proper installation is essential for performance. Preparation includes inspecting the roof deck, correcting any moisture issues, and selecting suitable underlayment. Nailing patterns vary by product and climate zone; using the manufacturer’s instructions ensures optimal wind resistance. Flashing around chimneys, vents, and skylights must be sealed correctly to prevent leaks. A professional contractor should verify attic ventilation and roof drainage to avoid moisture buildup under the shingles.
Routine maintenance extends the roof’s life and preserves appearance. Conduct seasonal inspections to identify damaged, curled, or missing shingles and to check granule loss. Clean debris from gutters and vents to maintain airflow and drainage. If moss or algae growth appears, use approved roof-cleaning methods to prevent damage. Replacing individual shingles is common practice; avoid full reroofing unless extensive damage occurs or the warranty expires and upgrades are desired.
Costs for composition roofing vary by product quality, thickness, and local labor rates. Typical range for standard fiberglass asphalt shingles is moderate, with architectural shingles at a higher tier due to enhanced appearance and extra layers. Begin with a cost-per-square estimate and compare underlayment, flashing, and disposal fees. While initial costs are important, consider long-term value from energy efficiency, warranty coverage, and maintenance needs when evaluating total cost of ownership.
Many composition shingles incorporate recycled content and are recyclable after life. Local regulations may influence disposal options or recycling programs. Some manufacturers offer cool-roof options with reflective granules that reduce heat absorption, contributing to energy efficiency in homes. For homeowners seeking greener options, verify recycled content and recycling pathways with manufacturers and local waste management services.