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  • Twigainsul logo representing Glass Wool Board.
  • Glass Wool

Glass Wool Board

  • Robust Rigid and semi-rigid product
  • Ease of use Ease of use
  • Customized sizes Customized sizes
  • Self Supported Self Supported

Range

  • Density : 32 to 120 kg/m3
  • Thickness : 15 to 100 mm
  • Width : 0.6 m
  • Length : 1.2 m
  • Available with or without facing

Facings

  • Aluminium : FSK, R3035HD, Aluglass
  • Polypropylene : White Metalized Polypropylene
  • Tissue : FGT, BGT
  • Glass Cloth : WGC, BGC

Basic Information

Make / Brand Twigainsul
Material Resin bonded glass wool
Standard / Code IS 8183

Product Performing Criteria

Parameter Values Standards
Thermal Conductivity
(W/m.K)		 0.030 to 0.034 at 25oC mean temperature IS 8183, IS 3346
Thermal Resistance at Specific Thickness
(m2 K/W) 		For 25 mm: 0.76 to 0.8 m2 K/W
For 50 mm: 1.52 to 1.6 m2 K/W
Calculated as per thickness and thermal conductivity of insulation
NRC 0.65 to 0.95 ASTM C-423 / ISO 354

General Material Properties

Parameter Values Standards
Non-combustibility Non-combustible / Incombustible, Reaction to Fire 'A1' BS 476 Part 4, IS 8183, EN 13501
Surface spread of flame NIL, Class 1 BS 476 part 7
Fire propagation Class 0, index l <12, sub-index i1 <6 BS 476 part 6 and 7
Moisture content Less than 2% IS 3144, IS 8183
Shot content NIL IS 3144, IS 8183
Sulphur / Chloride Negligible IS 3144, IS 8183
Mold growth None IS 3144, IS 8183
Alkalinity pH 7 to 10 IS 8183

Certifications and Approvals

Environment Fire Health Safety Standards Compliance
GreenPro logo indicating Twigainsul Glass Wool Board certifications and approvals for environmental compliance. FM Approved logo for Twigainsul Glass Wool Board, highlighting fire safety certifications and approvals. EUCEB Approved logo for Twigainsul Glass Wool Board, signifying health and safety certifications and approvals. Standards Compliance logo for Twigainsul Glass Wool Board, representing adherence to various standards and certifications.
Griha logo for Twigainsul Glass Wool Board, denoting certifications and approvals for environmental performance.
Singapore Green Building Council logo for Twigainsul Glass Wool Board, indicating sustainability and green building certifications.

Application

Twigainsul Glass Wool Board used for building applications such as RCC underdeck, masonry walls, façade insulation, and drywall.

Building

RCC underdeck, Masonry wall, Façade and spandrel insulation, drywall

Twigainsul Glass Wool Board designed for HVAC duct thermal insulation, acoustic treatment, and AHU room applications.

HVAC

Duct thermal, Duct acoustic, AHU room

Twigainsul Glass Wool Board suitable for industrial applications including cold storage and small furnaces.

Industry / OEM

Cold storage, Small furnaces

Twigainsul Glass Wool Board used in mobility applications, specifically for train coach insulation.

Mobility

Train coach

Frequently Asked Questions

Glass wool board insulation is used for thermal, acoustic, and fire protection in walls, ceilings, HVAC ducts, and industrial equipment.

Glass wool boards have low thermal conductivity, offering high thermal resistance and effective heat transfer control. Crimped boards are stronger than normal boards and can be used as core of sandwich panels or base of membrane roofing where high compressive strength is required.

Yes, glass wool boards are non-combustible and comply with major fire safety and building standards.

Commercial construction, HVAC, manufacturing, cold storage, infrastructure, and OEM industries commonly use glass wool boards.

Glass wool boards offer excellent thermal and acoustic performance with lighter weight, while rock wool boards typically provide higher density and impact resistance.

Glass wool boards are available in multiple densities within a range of 32 – 120 Kg/m3 with several thicknesses to suit HVAC, wall, ceiling, and industrial insulation needs.

Yes, its fibrous structure effectively absorbs sound, reducing noise transmission and improving indoor acoustics.

Options include aluminum foil, polypropylene, black glass cloth, black tissue, and other facings based on application requirements.

Selection depends on thermal, acoustic, fire rating needs, system type, and applicable standards.

Yes, glass wool board is widely used for HVAC duct insulation due to its thermal efficiency, less compression, less sagging and noise control properties.

Engineers should consider density, thickness, facing type, fixing method, and vapor barrier requirements for optimal performance.

Strategic Importance of Glass Wool Board in Modern Construction

Why Glass Wool Board is Critical for High-Performance Insulation Systems

Insulation boards are self-supportive and need less accessories for perfect installation. For applications like cavity wall, large size metal duct insulation-wrap, train coach insulation, board products are more suitable than other flexible forms. It does not sag and does not settle down over time even under jolting and vibration hence require less maintenance during its long performing life.

Glass wool board insulation has become a cornerstone material in high-performance buildings due to its superior thermal efficiency, acoustic control, and fire safety characteristics. As commercial and industrial construction increasingly focuses on energy efficiency, occupant comfort, and sustainability, glass wool insulation boards play a critical role in meeting evolving performance benchmarks across global markets.

Rigid glass wool boards contribute significantly to reducing energy consumption by minimizing heat transfer through walls, ceilings, and HVAC systems. Their application supports green building objectives and helps projects align with international certification frameworks such as LEED, GRIHA, and IGBC, by lowering operational carbon footprint and improving overall building efficiency.

Technical Superiority: Performance Attributes That Drive Value

Performance Advantage Thermal, Acoustic & Fire Safety Engineering

Glass wool insulation boards are engineered with superior mechanical properties, low thermal conductivity, ensuring high thermal resistance, less compression and consistent temperature regulation across diverse climatic conditions. This makes glass wool insulation highly effective for both hot and cold environments, particularly in commercial and industrial buildings.

From an acoustic standpoint, the fibrous structure of glass wool board enables excellent sound absorption, reducing airborne noise and enhancing indoor environment quality in offices, hospitals, educational institutions, and manufacturing facilities.

Fire safety is another defining attribute. Glass wool boards are inherently non-combustible and comply with stringent fire safety standards, reinforcing building code compliance and enhancing occupant safety. Additional benefits include dimensional stability, moisture resistance, and long-term durability, making them suitable for demanding industrial applications.

Installation Flexibility & System Compatibility

Design Flexibility and Installation Efficiency of Glass Wool Boards.

One of the key advantages of glass wool insulation boards is their ease of handling and installation. The rigid yet lightweight structure allows for quick cutting, shaping, and fitting across various insulation systems, reducing on-site labor time and complexity.

Glass wool boards are widely compatible with HVAC ducts, wall partitions, ceilings, and industrial equipment insulation. Their adaptability makes them a preferred choice for HVAC insulation boards, duct insulation glass wool board applications, and industrial insulation boards, where speed, precision, and system integration are critical.

Applications Across Segments: Versatility in Use Cases

Cross-Segment Applications From Built Environment to Industrial Systems

Glass wool boards are extensively used across multiple segments:

  • Commercial buildings such as offices, malls, schools, and hospitals for thermal and acoustic insulation.
  • HVAC systems, where duct insulation ensures thermal control and noise mitigation.
  • Industrial and OEM sectors, including cold storage insulation, furnaces, process equipment, and machinery enclosures.
  • Mobility and infrastructure, such as railways and specialized transportation systems.

Availability in customized sizes, densities, and facings allows glass wool boards to meet diverse project-specific requirements.

Innovation and Compliance: Standards, Certifications, and Quality Assurance

Built on Trust – Standards, Certifications & Quality Benchmarks

High-quality glass wool board insulation complies with national and international standards such as IS 8183, ASTM, and EN specifications. Third-party certifications like GreenPro, EUCEB, and fire safety approvals enhance confidence among consultants, contractors, and procurement teams, ensuring consistent performance, safety, and regulatory compliance.