Glass Wool Panel
Fireproof: Glass wool is a non-combustible material, and the sandwich panel has good overall fireproof performance.
Corrosion resistance: The metal panel has been treated with anti-corrosion, has strong corrosion resistance, and extends its service life.
Health: Glass wool is an inorganic material and does not contain harmful substances.
Beauty: The panel color and surface treatment are diverse, meeting the aesthetic requirements of different architectural styles.
Economical and practical: Superior comprehensive performance, long service life, low maintenance cost, and high cost performance.
Product Introduction
The glass wool sandwich panel is a highly versatile building material with multiple benefits. Its remarkable thermal insulation suits energy-efficient construction by regulating indoor temps to cut energy use. Superior fireproof performance ensures safety in residential/commercial settings, while excellent acoustic insulation reduces noise for offices, studios, schools and other noise-sensitive places.
Product Specifications
Product name | glass wool sandwich panel |
Effective width | Wall panel: 950mm/1000mm/1150mm |
Roof panel :1000mm | |
Thickness | 50mm, 75mm, 100mm, 150mm, 200mm |
Length | Less than 11.8m |
Density | 64 KG/m3 |
Steel sheet thickness | 0.4-0.7mm |
Thermal Conductivity | <0.023 |
Color | RAL |
Fireproof Grade | White, gray, crimson, silver, sea blue, customized |
Application | Sandwich Panel for Steel Strucure |
Features | Soundproof, Waterproof, Heat insulation, Seismic Resistance |
Product Details
Panel: color-coated panel, galvanized steel plate, stainless steel plate
Standard colors: white gray / crimson / silver / sea blue, etc.
Recommended coating: PVDF / SMP / HDP / PE
Production process: unwinding, pressing, laying, double-track curing molding, drying board cooling, stacking, packaging
Quality Assurance
Our company owns a top-tier material testing center laboratory. Equipped with over 30 units of professional-grade equipment, the lab serves dual purposes: comprehensively testing the properties of raw materials, auxiliary components, and finished products in the enclosure system, while supporting new product R&D. All tasks comply with international standard specifications to ensure high-quality outcomes.
A glass wool panel is a high-performance thermal and acoustic insulation solution widely used in construction, HVAC systems, cleanrooms, prefabricated buildings, and industrial facilities. Manufactured using molten glass fibers bonded with thermosetting resins, glass wool panels are renowned for their low thermal conductivity, fire resistance, and sound absorption capabilities. This article provides a detailed technical overview of glass wool panels, including specifications, materials, standards, installation guidelines, and maintenance considerations.
What Is a Glass Wool Panel?
Glass wool panels are prefabricated building elements consisting of a glass wool core sandwiched between protective facing materials such as galvanized steel, aluminum, or coated steel sheets. They are designed to offer:
Thermal insulation
Soundproofing
Fire resistance
Structural rigidity
Moisture resistance
These panels are typically used in wall, ceiling, and roof applications for both interior and exterior environments.
Key Materials and Construction
1. Core Material: Glass Wool
Composed of silica sand and recycled glass
Fiber diameter: 5–8 microns
Density: 24–96 kg/m³ depending on usage
Fire rating: Non-combustible (Class A1 per EN 13501-1)
2. Surface Skin Options
Pre-painted galvanized steel (PPGI)
Aluminum-zinc coated steel
Stainless steel (optional for cleanrooms or food-grade use)
3. Adhesive Layer
Heat-resistant thermosetting resin to bond core and face material
Technical Specifications
| Parameter | Value Range / Standards |
|---|---|
| Thermal Conductivity | 0.032–0.040 W/m·K |
| Sound Absorption Coefficient | NRC 0.75–0.90 (ASTM C423) |
| Fire Classification | EN 13501-1 Class A1 (non-combustible) |
| Panel Thickness | 50 mm / 75 mm / 100 mm / 150 mm |
| Width | 950–1200 mm |
| Length | Up to 12 meters (customizable) |
| Compressive Strength | ≥ 25 kPa (ISO 844) |
| Water Absorption | < 1% by volume (EN 1609) |
Engineering and Application Benefits
Thermal Efficiency
Glass wool panels maintain consistent indoor temperatures by minimizing heat transfer through walls or ceilings. This reduces HVAC loads and energy costs significantly in industrial and commercial buildings.
Acoustic Insulation
Due to the porous structure of glass fibers, these panels effectively absorb sound waves, making them ideal for environments requiring noise control, such as auditoriums, factories, and machinery rooms.
Fire Safety
Glass wool is inherently non-combustible. Panels meet stringent fire safety codes in the EU, US, and Asia, often required in petrochemical plants, power substations, and high-occupancy buildings.
Lightweight and Easy to Handle
Despite their strong insulation properties, glass wool panels are lightweight and suitable for rapid on-site installation in prefabricated modular buildings.
Regulatory and Industry Standards
Glass wool panels must comply with the following global standards:
EN 13162: Thermal insulation products for buildings — Factory-made mineral wool (MW) products
EN 13501-1: Fire classification of construction products
ASTM C423: Standard Test Method for Sound Absorption
ISO 14001: Environmental management systems
REACH / RoHS: Compliance for health and environmental safety
Installation Guidelines
Pre-Installation Checklist
Verify panel integrity and dimensions on-site
Ensure dry storage to avoid moisture penetration
Use approved lifting devices to prevent deformation
Mounting Procedure
Structural Framing: Ensure supporting steel structure meets load-bearing standards.
Sealing: Use non-hardening sealants at joints to maintain airtightness and thermal continuity.
Fastening: Self-drilling screws and concealed joint systems recommended.
Finish: Apply protective trim or flashings at edges and corners.
Safety Precautions
Wear protective clothing and masks during cutting or handling
Avoid high-moisture environments during installation
Comply with local occupational safety regulations
Applications
Industrial Warehouses
Cold Storage Units
Cleanroom Facilities
HVAC Ducting
Modular Buildings
Soundproof Partitions
Frequently Asked Questions (FAQ)
Q1: Is glass wool hazardous to health?
A: Modern glass wool meets bio-solubility standards and is safe when handled using proper PPE. It is non-toxic and non-carcinogenic per WHO classifications.
Q2: Can these panels be used outdoors?
A: Yes, when equipped with corrosion-resistant facing and properly sealed, glass wool panels are weather-resistant and suitable for external walls and roofs.
Q3: What’s the service life of glass wool panels?
A: Typically 25–30 years with proper installation and maintenance. They do not degrade under normal operating conditions.
Q4: How do they perform in humid environments?
A: While glass wool is hydrophobic by nature, exposure to direct water or prolonged high humidity should be avoided without protective vapor barriers.
Maintenance Recommendations
Periodically inspect joints for sealant deterioration
Avoid mechanical damage or pressure on panel surfaces
Clean external surfaces with non-abrasive solutions
Replace damaged sections to maintain insulation integrity
Conclusion
Glass wool panels represent a high-performance, compliant, and eco-friendly solution for thermal and acoustic insulation in modern construction. Their versatility in wall, ceiling, and roofing systems makes them suitable across a range of industries, from pharmaceuticals to logistics centers.
Call to Action
We offer expert consultation and tailored technical solutions for selecting and integrating glass wool panels in your projects. For detailed product specifications, CAD drawings, or pricing inquiries, contact our engineering support team today.




