The Global Glass Mineral Wool Insulation Market was valued at USD 12.5 Billion in 2023 and is projected to reach USD 17.8 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 5.2% during the forecast period (2024–2030). This robust growth is primarily driven by stringent energy efficiency regulations, rising construction activities globally, and increased demand for sustainable building materials that reduce carbon footprints.

As the construction industry pivots towards green building standards and net-zero energy goals, the role of high-performance insulation has never been more critical. In this blog, we profile the Top 10 Companies in the Glass Mineral Wool Insulation Industry—a group of global manufacturers and innovators who are setting the benchmark for thermal efficiency, fire safety, and acoustic comfort in buildings worldwide.

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🔟 1. Knauf Insulation

Headquarters: Shelbyville, Indiana, USA
Key Offering: Glass Mineral Wool Rolls, Batts, Boards, and Acoustic Slabs

Knauf Insulation is a global leader in insulation solutions, with a significant market share in glass mineral wool. The company is renowned for its ECOSE® Technology, a bio-based binder that reduces embodied energy and improves indoor air quality. Their products are widely used in residential, commercial, and industrial applications.

Sustainability Initiatives:

• Commitment to achieving carbon neutrality in operations by 2050
• High recycling content in glass wool production using cullet
• Product innovations focused on circular economy principles

Download FREE Sample Report: Glass Mineral Wool Insulation Market – View in Detailed Research Report

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9️⃣ 2. Owens Corning

Headquarters: Toledo, Ohio, USA
Key Offering: PINK® FIBERGLAS™ Insulation, FOAMGLAS® Cellular Glass Insulation

Owens Corning is a pioneer in fiberglass insulation, offering a comprehensive portfolio of glass mineral wool products for thermal and acoustic applications. The company operates manufacturing facilities across North America, Europe, and Asia, serving both new construction and retrofit markets.

Sustainability Initiatives:

• Goal to reduce Scope 1 and 2 greenhouse gas emissions by 50% by 2030
• Product take-back and recycling programs
• Development of formaldehyde-free insulation products

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8️⃣ 3. Saint-Gobain

Headquarters: Courbevoie, France
Key Offering: ISOVER Glass Wool Insulation, URSA Glass Mineral Wool

Saint-Gobain, through its ISOVER brand, is one of the world’s largest producers of glass mineral wool. The company offers a wide range of insulation solutions for building envelopes, partitions, and technical installations, emphasizing performance and sustainability.

Sustainability Initiatives:

• Target to achieve net-zero carbon by 2050
• Integration of recycled glass (cullet) exceeding 60% in production
• Innovations in thin, high-performance insulation solutions

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7️⃣ 4. Johns Manville

Headquarters: Denver, Colorado, USA
Key Offering: JM Climate Pro™ Fiber Glass Insulation, Spider® Industrial Insulation

A Berkshire Hathaway company, Johns Manville is a leading manufacturer of insulation and building products. Their glass mineral wool offerings are known for high thermal resistance (R-value) and are extensively used in commercial roofing, HVAC, and industrial applications.

Sustainability Initiatives:

• Investment in energy-efficient manufacturing processes
• Use of recycled materials in product formulations
• Focus on durable products that reduce long-term energy consumption

Download FREE Sample Report: Glass Mineral Wool Insulation Market – View in Detailed Research Report

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6️⃣ 5. Rockwool International A/S

Headquarters: Hedehusene, Denmark
Key Offering: Stone Wool Insulation (complementary to glass wool segment)

While primarily known for stone wool, Rockwool is a major player in the broader mineral wool insulation market. The company’s products offer superior fire resistance and acoustic performance, competing directly with glass wool in specific high-temperature applications.

Sustainability Initiatives:

• Ambitious carbon roadmap targeting significant CO2 reduction
• Circularity programs for recycling pre- and post-consumer waste
• Products contributing to LEED and BREEAM certifications

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5️⃣ 6. U.P. Twiga Fiberglass Limited

Headquarters: Uttar Pradesh, India
Key Offering: Glass Wool Insulation for HVAC, Appliance, and Automotive sectors

U.P. Twiga is a leading Indian manufacturer of glass wool insulation, catering to the growing demand in South Asia and the Middle East. The company specializes in custom-engineered solutions for industrial and commercial applications.

Sustainability Initiatives:

• Adoption of energy-saving technologies in manufacturing
• Focus on supplying locally to reduce transportation emissions
• Development of products for energy-efficient building standards

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4️⃣ 7. Beijing New Building Material (Group) Co., Ltd.

Headquarters: Beijing, China
Key Offering: Glass Wool Insulation, Gypsum Boards, and Other Building Materials

As a subsidiary of China National Building Material Group (CNBM), this company is a dominant force in the Asian insulation market. It produces a wide array of glass mineral wool products tailored for the region’s rapid urbanization and construction boom.

Sustainability Initiatives:

• Alignment with China’s national carbon peak and neutrality goals
• Research into low-carbon building material technologies
• Large-scale production enabling cost-effective green solutions

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3️⃣ 8. Paroc Group Oy

Headquarters: Helsinki, Finland
Key Offering: PAROC Stone Wool Insulation

Paroc is a key European manufacturer of mineral wool insulation, with a strong presence in the Nordic and Baltic regions. Their products are designed for harsh climates, offering exceptional thermal efficiency and fire safety for buildings and technical installations.

Sustainability Initiatives:

• Comprehensive Life Cycle Assessment (LCA) for all products
• High focus on energy recovery and waste reduction in plants
• Products that contribute to nearly Zero-Energy Building (nZEB) standards

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2️⃣ 9. Huamei Energy-saving Technology Group

Headquarters: Hebei, China
Key Offering: Glass Wool and Rock Wool Insulation Products

Huamei is a specialized Chinese manufacturer focusing on energy-saving insulation materials. The company has a significant production capacity and serves both domestic infrastructure projects and international export markets.

Sustainability Initiatives:

• Investment in R&D for high-efficiency insulation materials
• Compliance with international environmental and safety standards
• Supporting China’s green building and prefabricated construction policies

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1️⃣ 10. KCC Corporation

Headquarters: Seoul, South Korea
Key Offering: Insulation Materials, Paints, and Construction Chemicals

KCC Corporation is a major South Korean conglomerate with a strong presence in the building materials sector. Their insulation division produces glass and rock wool products that are critical for the energy-efficient building standards being adopted across Asia.

Sustainability Initiatives:

• Corporate-wide sustainability management system
• Development of eco-friendly construction material solutions
• Active participation in creating green building certification criteria

Get Full Report Here: Glass Mineral Wool Insulation Market – View in Detailed Research Report

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🏗️ Outlook: The Future of Building Insulation Is High-Performance and Eco-Conscious

The glass mineral wool insulation market is undergoing a significant transformation. While traditional cost and performance metrics remain important, the industry is increasingly focused on sustainability, circular economy principles, and digital integration to meet the demands of modern construction.

📈 Key Trends Shaping the Market:

• Rising stringency of building energy codes worldwide (e.g., IECC, EPBD)
• Growing adoption of prefabricated and modular construction techniques
• Increasing consumer awareness and demand for healthy indoor environments
• Innovation in product formats, such as thinner, higher R-value insulations

Get Full Report Here: Glass Mineral Wool Insulation Market – View in Detailed Research Report

The companies listed above are not only supplying essential building materials—they’re actively building the foundation for a more energy-efficient and sustainable future.