Knauf 100mm Glasswool Insulation – 10000mm (L) x 1200mm (W)
In stock
R992,00
Knauf 100mm Earthwool insulation is a reliable and cost-effective ceiling insulation solution designed for homes in warmer or moderate climate zones across South Africa. With an R-value of 2.50 m²·K/W, this high-performance glasswool insulation provides excellent thermal comfort and acoustic control.
Knauf 100mm Insulation (Earthwool ECOSE®)
Knauf 100mm Earthwool insulation offers a high-performance thermal and acoustic solution for homes across South Africa. Manufactured using advanced ECOSE® Technology, this soft, brown glasswool insulation is free from formaldehyde, dyes, and added chemicals — making it safer for installers and households. With an R-value of 2.50 m²·K/W, the 100mm thickness is suitable for regions with mild to moderate climates or as a retrofit layer in existing ceilings.
Product Highlights
- R-Value: 2.50 m²·K/W – ideal for moderate climates
- Comfort: Keeps homes warmer in winter and cooler in summer
- ECOSE® Technology: Plant-based binder, formaldehyde-free
- Health & Safety: Non-toxic, non-carcinogenic, soft to handle
- Environmental Impact: Made from up to 80% recycled glass
- Soundproofing: Excellent noise absorption properties
Technical Specifications
| Attribute | Specification |
|---|---|
| R‑Value | 2.50 m²·K/W |
| Installed R‑Value | Approx. 2.80 m²·K/W |
| Thickness | 100mm |
| Density | 12 kg/m³ |
| Thermal Conductivity (k) | ~0.040 W/m·K |
| Roll Coverage | 12m² |
| Fire Rating | SANS Class 1 / Euroclass A1 |
| Noise Reduction (NRC) | ~1.10 |
| Binder | ECOSE® (plant-based) |
| Environmental Impact | 80% recycled content |
Why Choose Knauf 100mm?
Knauf 100mm roof insulation strikes the perfect balance between thermal resistance, cost-efficiency, and sustainability. With a manufacturer-rated R-value of 2.50, it’s ideal for homes in warmer areas or existing buildings where 135mm thickness may not fit. When properly installed, the total performance improves further thanks to layering with roofing materials.
Customers often report immediate comfort gains, reduced noise from outside, and a noticeable improvement in temperature regulation. Combined with energy bill savings, Knauf 100mm is a long-term value investment — delivering comfort, quiet, and compliance.
Best Used For
- Homes in moderate or coastal climates
- Retrofitting ceilings where thicker insulation won’t fit
- Secondary layers over existing insulation
- Budget-conscious insulation upgrades
Areas We Serve
We supply and install Knauf Earthwool 100mm insulation across:
- Johannesburg
- Pretoria
- Centurion
Professional installation is available, or we can supply for DIY installation. Contact us for advice or quotes.
Frequently Asked Questions
Q: How many square meters does one roll cover?
A: Each Knauf 100mm roll covers approximately 12m².
Q: Is this thickness enough for SANS 10400-XA compliance?
A: It depends on your climate zone. In Zones 1 and 5, 135mm is generally required. However, 100mm may suffice in milder areas or for additional top-up layers. Read more about SANS-10400-XA.
Q: Can I install this myself?
A: Yes, it’s DIY-friendly. Knauf’s soft texture and ECOSE® binder make it safer and easier to handle than traditional glasswool.
Q: Does it reduce noise?
A: Yes. It has a high NRC (~1.10) and provides effective sound dampening between rooms and from external sources like rain or traffic.
Q: Is Knauf insulation safe?
A: Completely. It’s certified non-toxic, formaldehyde-free, non-combustible, and safe for homes with children or pets.
Q: What other thicknesses are available?
A: Knauf Earthwool is also available in 50mm and 135mm thicknesses.
Order Knauf 100mm Roof Insulation Today
Looking to upgrade your home’s energy performance without compromising on comfort or safety? Knauf 100mm Earthwool offers a sustainable, cost-effective, and high-performing thermal insulation solution.
Get in touch for delivery or professional installation across Johannesburg, Pretoria, and Centurion.
