When insulating your home, the performance of the insulation material over the long term is a critical factor to consider. A material’s ability to retain its R-value — the measure of its thermal resistance — determines its effectiveness in reducing energy loss and maintaining a comfortable indoor environment.
In this blog, we explore which insulation materials excel at maintaining their R-value over time and why Knauf Earthwool insulation, available in various batts or fibrous Glass Mineral Wool, stands out as one of the best choices for long-term thermal performance.
The Challenge of R-Value Retention
While many insulation materials start with a high R-value, not all maintain this level of performance as they age. Factors that can cause a drop in R-value over time include:
1. Moisture Absorption: Many materials lose their insulating properties when exposed to moisture.
2. Settling or Compression: Over time, loose-fill or poorly supported materials may settle, creating gaps and reducing efficiency.
3. Degradation: Some materials, such as fibreglass or foam, may degrade due to UV exposure, pests, or poor installation practices.
Knauf Insulation
Knauf insulation is engineered to avoid these common pitfalls, offering exceptional durability and long-term performance. Here’s why it excels:
1. Moisture Resistance
Knauf fibrous Glass Mineral is manufactured with a hydrophobic treatment, ensuring it repels water. This resistance to moisture prevents degradation and the growth of mould or mildew, which can compromise thermal performance.
2. High Dimensional Stability
Whether in batts or cellulose fibre form, Earthwool is designed to maintain its shape and structure over time. This prevents the sagging or settling that reduces insulation effectiveness in other materials.
3. Resilience Against Wear and Tear
Earthwool is made from glass wool that uses ECOSE® Technology, a sustainable, bio-based binder. This unique composition not only enhances its environmental credentials but also increases its durability. It resists breakdown, ensuring that the insulation remains intact for decades.
The Advantages of Earthwool Batts and Cellulose Fibre
Both the batt and fibrous formats of Knauf Earthwool deliver exceptional thermal and acoustic insulation, but each has its unique benefits:
Pre-cut and easy to install, batts are ideal for walls, ceilings, and floors. Their uniform density ensures consistent coverage and excellent R-value retention, even under compression.
An eco-friendly loose-fill option, Earthwool cellulose fibre insulation is treated to resist fire, pests, and moisture. It offers superior thermal resistance in hard-to-reach areas and settles less than conventional loose-fill products, maintaining its R-value for years.
Why Choose Knauf Earthwool?
Knauf Earthwool insulation not only retains its R-value over time but also offers:
• Sustainability: Made from up to 80% recycled glass, it has a lower environmental impact than many other insulation materials.
• Non-Irritating: Free from added formaldehyde and harsh chemicals, it is soft to touch and safe to handle.
• Excellent Fire Resistance: Compliant with Australian fire safety standards.
• Acoustic Benefits: Reduces noise transfer between rooms and from external sources.
Conclusion
When it comes to long-term insulation performance, Knauf Earthwool products are at the forefront of the industry. Its moisture resistance, stability, and resilience make it a standout choice for maintaining R-value over time, whether in the form of batts or cellulose fibre.
Investing in Knauf Earthwool insulation is a smart, sustainable choice that pays dividends in energy efficiency and indoor comfort for decades. Weather you're a homeowner or builder contact Brisbane Insulation today to experience the insulation material of choice for enduring performance and peace of mind.
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