Earthwool® R-8.0 Ceiling Insulation
Overview
Earthwool® R-8.0 Ceiling Insulation is our highest-rated option, offering ultimate performance and superior energy-saving properties, helping to keep your home cool in summer and warm in winter.
Product Description
The Earthwool® Ceiling Insulation Batt Range offers various R-values to suit builders, designers, installers, and DIYers — allowing the best choice for their project’s thermal performance.
Once installed, Earthwool® Ceiling Batts significantly improve a building’s thermal comfort and energy efficiency, maintaining consistent temperatures throughout the year.
TwinTech® Technology
Earthwool® insulation features TwinTech®, a dual-forming technique that provides a smooth finish on both sides, improving both handling and appearance.
This represents another step forward in insulation manufacturing quality and comfort.
Sustainability & Materials
Earthwool® Ceiling Insulation Batts are made using:
- Up to 80% recycled glass
- ECOSE® Technology — a sustainable, plant-based binder containing no added formaldehyde
The result is a soft, odourless, and easy-to-handle insulation product with an earthy brown colour — achieved naturally without dyes or colourants.
Key Benefits
- TwinTech® – smooth finish on both sides
- High thermal performance – year-round comfort
- Sound absorbing
- Non-combustible
- Energy saving – lower energy bills
- No added formaldehyde
- Soft to handle and install
- Compression packed – more product per pack
- Odourless
Technical Specifications
Thermal:
- AS/NZS 4859.1 (2018)
Fire Hazard Properties (AS/NZS 1530.3):
- Ignitability: 0
- Spread of Flame: 0
- Heat Evolved: 0
- Smoke Developed: 0–1
Other Properties:
Water Vapour Absorption: Less than 5% by weight
Microbial Growth: Does not support microbial growth
Corrosion Resistance: No greater than sterile cotton
Combustibility (AS 1530.1): Non-combustible
Available Options
Performance & Handling
Earthwool® insulation is non-combustible and meets the Australian Standard AS1530.1:1994.
All Earthwool® products offer some acoustic performance due to the natural sound-absorbing properties of glasswool.
Earthwool® insulation:
- Does not attract vermin or insects
- Should not be compressed, as compression reduces R-Value and can cause recovery issues
Comfort & Manufacturing Innovation
Earthwool® integrates new technologies for better comfort:
- Knauf Insulation’s proprietary fiberisation process – creates longer strands, reducing irritation.
- ECOSE® Technology – provides a softer, less dusty, and less “crunchy” feel than traditional glasswool.
The distinctive brown colour results naturally from ECOSE® Technology’s sustainable resin system, developed after five years of research and innovation.
Note: If exposed to UV radiation, Earthwool® may lighten in colour, but performance remains unaffected.
Environmental Impact & Certifications
ECOSE® Technology uses a natural resin that’s less energy-intensive than traditional binders, replacing petro-based chemicals with renewable organic materials.
Earthwool® products undergo rigorous environmental evaluation and consistently outperform traditional glasswool insulation in sustainability and performance.
Certifications:
- BRANZ appraised – complies with Australian Standards
- Eurofins Gold Certified – “Outstanding Material” under VOC Indoor Air Quality regulations
- Eurofins Indoor Air Comfort Gold Standard – awarded for exceptional low-emission and sustainable manufacturing
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