The Global Semi-Rigid Rock Wool Insulation Material Market was valued at an estimated USD 12.8 Billion in 2025 and is projected to reach USD 17.5 Billion by 2034, growing at a Compound Annual Growth Rate (CAGR) of approximately 5.2% during the forecast period (2024–2034). This robust growth is fueled by escalating global construction activities, stringent new building energy efficiency codes, and the increasing demand for fire-safe and acoustic insulation solutions across industrial and infrastructure projects.

As the world prioritizes sustainable building practices and enhanced safety standards, the manufacturers of semi-rigid rock wool insulation are at the forefront, providing critical materials that improve energy conservation and occupant safety. In this blog, we profile the Top 10 Companies in the Semi-Rigid Rock Wool Insulation Material Industry—leading innovators and suppliers shaping the built environment.

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Semi-Rigid Rock Wool Insulation Material Market – View in Detailed Research Report

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🔟 1. ROCKWOOL Group

Headquarters: Hedehusene, Denmark
Key Offering: Semi-rigid rock wool slabs, boards, and tailored solutions

ROCKWOOL Group is a global leader in stone wool insulation, with a presence in over 40 countries. Their semi-rigid products are renowned for superior fire resistance, acoustic performance, and thermal efficiency, making them a preferred choice for commercial buildings, industrial facilities, and HVAC systems.

Sustainability Initiatives:

• Commitment to carbon neutrality across operations by 2040

• Significant use of recycled content (up to 50%) in manufacturing

• Continuous R&D in product durability and recyclability

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9️⃣ 2. Saint-Gobain

Headquarters: Courbevoie, France
Key Offering: ISOVER semi-rigid rock wool insulation products

Through its ISOVER brand, Saint-Gobain offers a comprehensive portfolio of semi-rigid rock wool solutions. The company leverages its global manufacturing footprint to serve diverse applications, from external wall insulation to technical installations in demanding industrial environments.

Sustainability Initiatives:

• Ambitious 2050 carbon neutrality goal

• Development of circular economy models for insulation materials

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Semi-Rigid Rock Wool Insulation Material Market – View in Detailed Research Report

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8️⃣ 3. KNAUF Insulation

Headquarters: Shelbyville, Indiana, USA
Key Offering: ECOSE® Technology-based semi-rigid rock wool

KNAUF Insulation is a major player with a strong focus on innovation, notably its ECOSE® Technology which uses bio-based binders, reducing embodied energy and improving environmental credentials. Their semi-rigid boards are widely used in partitions, floors, and steel deck roofs.

Sustainability Initiatives:

• Pioneer in formaldehyde-free insulation products

• Global recycling programs for production waste

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7️⃣ 4. PAROC Group

Headquarters: Helsinki, Finland
Key Offering: PAROC semi-rigid slabs for technical and building applications

PAROC specializes in stone wool solutions with a strong presence in Northern and Eastern Europe. Their semi-rigid insulation materials are engineered for high-temperature stability and excellent compressive strength, catering to the industrial and construction sectors.

Sustainability Initiatives:

• Focus on energy-efficient production processes

• Products contribute to LEED and BREEAM certification goals

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6️⃣ 5. Promat

Headquarters: Brussels, Belgium
Key Offering: PROMATECT® semi-rigid rock wool boards for fire protection

Promat is a global expert in passive fire protection. Their semi-rigid rock wool products are integral to protecting structural steel, ducts, and pipes in commercial and industrial buildings, ensuring compliance with the most demanding fire safety regulations.

Sustainability Initiatives:

• Products designed for long service life, reducing replacement needs

• Investment in low-emission manufacturing technologies

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5️⃣ 6. URSA Insulation

Headquarters: Madrid, Spain
Key Offering: Semi-rigid rock wool for acoustic and thermal insulation

URSA, part of the Xella Group, offers high-performance insulation materials across Europe. Their semi-rigid rock wool range is valued for its ease of handling and installation, particularly in retrofit projects and new builds requiring enhanced sound absorption.

Sustainability Initiatives:

• Commitment to sustainable sourcing of raw materials

• Products contribute to significant energy savings in buildings

Download FREE Sample Report:
Semi-Rigid Rock Wool Insulation Material Market – View in Detailed Research Report

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4️⃣ 7. Siderise Group

Headquarters: Bridgend, United Kingdom
Key Offering: Specialist semi-rigid rock wool for cavity barriers and fire stopping

Siderise is a leading manufacturer of insulation products for the construction industry, with a specific focus on fire, acoustic, and thermal solutions for compartmentation. Their products are critical for maintaining integrity in wall and floor cavities.

Sustainability Initiatives:

• Development of products that enhance building safety and longevity

• Compliance with international environmental management standards

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3️⃣ 8. GLASSROCK INSULATION COMPANY

Headquarters: Cairo, Egypt
Key Offering: Semi-rigid rock wool for MEP and building envelopes

GLASSROCK is a key supplier in the Middle East and Africa, providing a wide range of insulation materials. Their semi-rigid rock wool products are essential for mechanical, electrical, and plumbing (MEP) applications and commercial building projects across the region.

Sustainability Initiatives:

• Focus on meeting the growing demand for energy-efficient buildings in hot climates

• Local production reducing transportation emissions

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2️⃣ 9. Fassa Bortolo

Headquarters: Bortolo, Italy
Key Offering: Integrated systems including semi-rigid rock wool insulation

Fassa Bortolo is an Italian leader in building materials, offering complete facade and insulation systems. Their semi-rigid rock wool is a core component of their external thermal insulation composite systems (ETICS), widely used in Mediterranean climates.

Sustainability Initiatives:

• Investment in products that improve the energy class of buildings

• Research into natural and recycled raw materials

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1️⃣ 10. CELENIT

Headquarters: Caleppio di Settala, Italy
Key Offering: Wood-wool and rock wool semi-rigid panels

CELENIT specializes in insulating panels made from wood and mineral wool. Their semi-rigid rock wool products are used in roofing, wall insulation, and technical applications, known for their ecological profile and high performance.

Sustainability Initiatives:

• Use of natural and mineral materials with low environmental impact

• Products designed for disassembly and recycling

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Semi-Rigid Rock Wool Insulation Material Market – View in Detailed Research Report

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🏗️ Outlook: The Future of Insulation Is High-Performance and Sustainable

The semi-rigid rock wool insulation market is evolving rapidly, driven by a global construction sector that demands materials offering not just thermal efficiency but also superior fire safety, acoustic comfort, and a reduced carbon footprint.

📈 Key Trends Shaping the Market:

• Rising adoption of green building standards like LEED, BREEAM, and Green Star

• Increasing stringency of national building codes focusing on energy conservation

• Growth in renovation and retrofit activities to improve existing building stock efficiency

• Innovation in product formats for easier and faster installation

Get Full Report Here:
Semi-Rigid Rock Wool Insulation Material Market – View in Detailed Research Report

The companies listed above are not only supplying essential building materials—they are enabling the construction of safer, quieter, and more energy-efficient environments for future generations.