Largest Commercial Roofing Manufacturers In The U.S.: Brands, Products, And Market Influence

Commercial roofing is a cornerstone of the U.S. construction industry, ensuring protection and durability for businesses nationwide. Choosing the right manufacturer can significantly impact a building’s longevity, energy efficiency, and maintenance costs. This guide provides a deep dive into the largest commercial roofing manufacturers in the United States, detailing their key products, industry reputation, and how they shape the roofing market.

Key U.S. Commercial Roofing Manufacturers At A Glance

Manufacturer	Notable Products	Specialty	Headquarters
Carlisle SynTec Systems	EPDM, TPO, PVC Roofing	Single-ply Membranes	Carlisle, PA
GAF	Modified Bitumen, TPO, Roofing Shingles	Wide Product Range	Parsippany, NJ
Johns Manville	TPO, PVC, BUR, Insulation	Energy-Efficient Systems	Denver, CO
Firestone Building Products (Holcim)	EPDM, TPO, Metal Roofing	Commercial Systems	Nashville, TN
Sika Sarnafil	PVC, TPO	Sustainable Roofs	Canton, MA
Tamko Building Products	Asphalt Shingles, Modified Bitumen	Asphalt & Modified Bitumen	Galena, KS
CertainTeed	Modified Bitumen, Asphalt, Insulation	Complete Roofing Solutions	Malvern, PA

Carlisle SynTec Systems: A Single-Ply Roofing Pioneer

Carlisle SynTec Systems stands among the largest commercial roofing manufacturers in the U.S., renowned for its leadership in single-ply membrane technologies. The company’s extensive line-up includes EPDM (rubber), TPO, and PVC roofing systems engineered for durability, flexibility, and weather resistance.

With decades of innovation, Carlisle’s products often dominate specifications for schools, healthcare facilities, distribution centers, and office buildings. Contractors praise Carlisle for its robust warranties, technical support, and widespread distribution network, ensuring consistent supply nationwide.

The company’s emphasis on sustainable materials and energy-saving white membranes has made it a leader in green building practices, appealing to organizations focused on LEED certification and environmental responsibility.

GAF: America’s Largest Roofing Manufacturer

GAF is the largest roofing manufacturer in North America, with a commanding presence in both commercial and residential markets. Its commercial division offers an impressive array of products, including modified bitumen, TPO membranes, asphalt shingles, and architectural metal systems.

GAF’s national reach, backed by dozens of manufacturing facilities, enables rapid product delivery and reliable support. The company’s “EverGuard” TPO and PVC lines are especially popular for flat and low-slope applications, often selected for energy efficiency, UV resistance, and value.

Contractors and building owners regard GAF for its versatile product line, educational programs, and industry certifications that help ensure proper installation and long-term system performance.

Johns Manville: Comprehensive Commercial Solutions

Owned by Berkshire Hathaway, Johns Manville delivers single-ply membranes (TPO, PVC), built-up roofing (BUR), insulation, and cover boards for the full spectrum of commercial projects.

Johns Manville distinguishes itself through energy-efficient insulation products and integrated roofing systems. Its innovative polyisocyanurate insulation board and factory-applied adhesives simplify installation and boost sustainability metrics for buildings seeking energy savings.

The company maintains a stellar reputation for research, technical support, and industry partnerships, making it highly trusted among architects and construction professionals.

Firestone Building Products (Holcim): Versatility And Performance

Now part of Holcim Group, Firestone is globally recognized for its command of EPDM, TPO, and polyiso insulation. The brand’s “RubberGard” EPDM is one of the most widely used single-ply systems in the world.

Firestone focuses heavily on system integration, quality control, and training. The company’s products are especially distinguished by their robust warranties, cutting-edge polymers, and performance under tough weather.

Firestone is also advancing “green” roofing, offering systems compatible with solar panel arrays and vegetative landscapes, appealing to environmentally focused projects.

Sika Sarnafil: Advancing Sustainability In Commercial Roofing

Sika Sarnafil is revered for its PVC and TPO membrane technologies, particularly in applications demanding long-term durability, chemical resistance, and environmental performance.

The company’s systems are frequently specified for airports, data centers, schools, and hospitals. Remarkably, Sika Sarnafil has pioneered recycling programs and reflective “cool roof” membranes that lower energy costs and mitigate urban heat.

Sika’s rigorous contractor training and quality assurance processes ensure consistently high installation standards, further cementing its leadership in sustainability-minded projects.

Tamko Building Products: Asphalt And Modified Bitumen Specialist

Tamko is a major player in the production of asphalt shingles, modified bitumen, and built-up roofing systems. Focusing on reliability and time-tested materials, Tamko’s “Awaplan” SBS and APP modified roofs have earned strong reputations in schools, retail chains, and light industrial facilities.

While its depth of product range is narrower than some rivals, Tamko is renowned for competitive pricing, manufacturing consistency, and robust distribution networks serving the central and southern U.S.

CertainTeed: Complete Roofing And Building Systems

CertainTeed, a subsidiary of Saint-Gobain, offers an array of modified bitumen, asphalt roofing, insulation, and underlayment systems tailored for commercial projects from office parks to apartment complexes.

Its “Flintlastic” modified bitumen roofing is lauded for multi-ply waterproofing and straightforward installation. CertainTeed’s holistic approach also includes comprehensive insulation and air barrier solutions, supporting whole-building efficiency.

The company is celebrated for product innovation and technical resources that help clients achieve performance and sustainability targets.

Chemical And Performance Insights: Roofing Material Comparisons

Product selection often revolves around material chemistry, performance in local climates, and lifecycle costs. Here’s how the main commercial roofing materials compare:

Material	Main Features	Best Uses	Drawbacks
EPDM (Ethylene Propylene Diene Monomer)	Rubber-like, UV-resistant, flexible	Large low-slope roofs	Susceptible to punctures, dark color absorbs heat
TPO (Thermoplastic Polyolefin)	Heat-weldable, white reflective surface, economical	Flat/low-slope roofs seeking energy savings	Varying quality, newer chemistry
PVC (Polyvinyl Chloride)	Chemical resistant, flexible, heat-welded seams	Restaurants, factories, “green” roofs	Higher cost, plasticizer migration over time
Modified Bitumen	Multi-ply, asphalt-based, robust waterproofing	Rooftops needing extra protection, cold climates	Labor-intensive, heavier system
B.U.R. (Built-Up Roofing)	Multiple asphalt/ply layers, strong track record	Institutions, industrial facilities	Heavy, longer installation time

Market Trends: Innovations And Consumer Demand

U.S. roofing manufacturers are driving trends that meet emerging demands for energy efficiency, sustainability, and technology integration. Cool roofs—systems that reflect sunlight and reduce heat absorption—are gaining traction due to tighter building codes and consumer demand for lower utility costs.

Green roofs that support vegetation and rainwater management are especially popular in urban redevelopment projects. Additionally, manufacturers are investing in recycled materials, solar-compatible membranes, and IoT sensor-enabled systems that monitor roof health and maintenance needs.

Distribution And Contractor Partnerships

Access to high-quality roofing materials depends on strong partnerships between manufacturers, distributors, and certified contractors. The largest companies, such as GAF and Carlisle, offer widespread distribution networks and supply chain efficiencies that ensure timely delivery and inventory tracking.

Major manufacturers also support their products with contractor training programs, installation warranties, and technical support, helping owners minimize risks and maximize system lifespan. Enhanced warranty offerings—up to 30 years in some cases—are a hallmark of the top brands.

Sustainability, Certifications, And Environmental Leadership

Today’s market leaders invest heavily in sustainable manufacturing, recycling initiatives, and third-party certifications. Many products meet or exceed standards such as ENERGY STAR, Cool Roof Rating Council (CRRC), and UL environments.

Manufacturers like Johns Manville and Sika Sarnafil operate recycling programs that reclaim tear-off membranes and reprocess them into new roofing products. LEED credits for cool roofs, recycled content, and regional materials promote environmental goals and can enhance property values.

Regional Leaders And Specialty Providers

While the giants dominate the field, several regional or specialty manufacturers offer unique materials and expertise. For instance, Duro-Last specializes in custom-fabricated PVC systems ideal for complex or unusual roof layouts. McElroy Metal focuses on innovative metal panel roof systems for large-scale commercial and public structures.

These specialty firms are often selected for projects requiring customization, accelerated schedules, or specialized performance criteria.

Certifications, Industry Standards, And Product Selection Guidance

It’s crucial to select roofing systems that are tested and certified by major industry organizations, including:

• FM Global (Factory Mutual) for wind, fire, and hail resistance
• UL (Underwriters Laboratories) for product safety and fire rating
• ASTM International for material quality standards
• CRRC (Cool Roof Rating Council) for solar reflectance and thermal emittance

Top manufacturers maintain extensive certifications and provide technical documents to support specification, installation, and warranty compliance.

Leading Commercial Roof Products By Category

Category	Leading Products/Brands	Noteworthy Features
EPDM	Carlisle Sure-Seal, Firestone RubberGard	Durability, Weather Resistance
TPO	GAF EverGuard, Johns Manville TPO	Heat-Reflectivity, Energy-Efficiency
PVC	Sika Sarnafil, Johns Manville PVC	Chemical Resistance, Longevity
Modified Bitumen	CertainTeed Flintlastic, Tamko Awaplan	Cold-Weather Performance, Layered Protection
BUR	Johns Manville Multi-ply, GAF Hot-Mop	Proven Longevity, Redundancy
Metal Roofing	Firestone UC Roof Metals, McElroy Metal	Fire Resistance, Aesthetic Flexibility

Factors Influencing Manufacturer Selection For Commercial Projects

When selecting among the largest commercial roofing manufacturers, stakeholders weigh several critical factors:

• Product range—ability to meet project-specific requirements
• Warranty coverage—length and comprehensiveness of protection
• Technical support—ease of specification and installation guidance
• Sustainability—environmental certifications and recycled content
• Price and value—balance of upfront cost and long-term ROI

Reputation for consistent quality, timely service, and reliable supply chains remains a critical consideration for large-scale commercial buyers.

Looking To The Future: Innovations On The Horizon

The commercial roofing industry is evolving rapidly, with manufacturers investing in smarter membranes, enhanced solar readiness, and integrated digital monitoring systems.

Expect to see the largest manufacturers continue their push toward improved energy efficiency, longer membrane life, and system connectivity—all backed by comprehensive data analytics and digital platforms that support predictive maintenance and asset management.

These advances will help building owners and facility managers reduce lifecycle costs, extend asset longevity, and meet increasingly stringent environmental and performance standards.