Glasswool Insulation is a high-performance, non-combustible thermal and acoustic insulation material manufactured from recycled glass and sand. It is lightweight, flexible, durable and available in blankets, boards and rolls for residential, commercial and industrial applications. Designed to reduce heat transfer, improve acoustic comfort and enhance fire safety, Glasswool is suitable for ceilings, walls, ducts, purlins, partitions, pipelines and HVAC systems.
• 25 mm
• 40 mm
• 50 mm
• 75 mm
• 100 mm
• Boards, Rolls & Duct Wrap Variants
In Stock
| Property | Specification |
|---|---|
| Material | Glass Mineral Wool |
| Fire Classification | Euroclass A1 / A2, non-combustible |
| Thermal Conductivity | 0.032 – 0.040 W/m·K |
| Facing Options | Plain, Aluminium Foil, Reinforced Foil |
| Thickness Range | 25 mm to 100 mm |
| Roll & Board Width | 600 mm / 1200 mm |
| Acoustic NRC | 0.80 – 1.10 depending on density |
| Moisture Resistance | Non-hygroscopic, water-repellent |
| Density Range | 10 – 48 kg/m³ |
Glasswool Insulation is used for ceilings, walls, partitions, HVAC ducts, purlin roofs and acoustic installations. It improves energy efficiency, reduces sound transmission and increases fire safety, making it suitable for homes, offices, warehouses and industrial structures.
Yes. Glasswool is non-combustible with Euroclass A1/A2 fire ratings, meaning it does not burn or produce toxic smoke. It is widely used in fire-rated assemblies and helps slow heat transfer during fire exposure, improving building safety.
Absolutely. Glasswool has excellent acoustic absorption, with NRC values often above 1.00 depending on thickness and density. It reduces echo, airborne noise and room-to-room transmission, making it ideal for studios, offices and residential sound control.
No. Glasswool is non-hygroscopic and water-repellent, meaning it does not absorb moisture or support mould growth. Properly installed, it remains durable and effective even in humid environments such as ceilings, ducts and mechanical rooms.
Glasswool is rot-proof, chemically stable and does not deteriorate over time. When kept dry and installed correctly, it can last the entire life of the building, maintaining consistent thermal and acoustic performance.
Yes. Due to its high fire resistance, thermal performance and acoustic absorption, Glasswool is widely used in factories, warehouses, workshops, industrial plants and large-span metal structures for roof and wall insulation.
Installation is simple and only requires a knife, tape measure and aluminium tape for foil-faced versions. It fits easily between studs or over purlins, and no specialised tools or equipment are required for most applications.
Modern Glasswool made with ECOSE® Technology contains no added formaldehyde and meets international indoor air quality standards. With proper protective gear, installation is safe, and once installed, it poses no health risks.
Thickness depends on thermal and acoustic requirements. For ceilings and roofs, 75–100 mm is recommended. For ducting, 25–50 mm is common. For partitions, 50 mm typically offers excellent sound and thermal benefits.
It should not be left exposed in occupied spaces. Glasswool must be covered with drywall, cladding or protective boards. For HVAC ducts, foil-faced variants may remain visible as long as they meet local building code requirements.
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