Knauf Earthwool Ceiling Insulation
High-performance glass mineral wool ceiling insulation manufactured with ECOSE® Technology. Knauf provides excellent thermal, acoustic and fire performance in a soft, flexible insulation roll.
comfort.
Built with ECOSE®
Technology.
Find the right Knauf for your project
Compare Knauf Earthwool thicknesses by thermal performance, roll coverage and price to find the right option for your project.
135mm
Knauf
100mm
Knauf
75mm
Knauf
50mm
Knauf
Knauf Earthwool
Insulation
Knauf Earthwool is a glasswool ceiling insulation range designed to provide reliable thermal and acoustic performance in South African homes and buildings. The soft, flexible insulation rolls are manufactured with ECOSE® Technology and are designed for easier handling and installation.
The Knauf Earthwool range is available in 50mm, 75mm, 100mm and 135mm thicknesses, providing different R-values and roll coverage for different insulation requirements. Compare the available products to find the right balance of thermal performance, coverage and price for your project.
Knauf Prices & Cost Guide
Compare Knauf Earthwool prices across the available thicknesses, including roll coverage, R-values and approximate cost per m², to help you choose the right ceiling insulation for your project and budget.
| Product | Coverage | R-Value | Roll Price | Approx. Cost / m² |
|---|---|---|---|---|
| 135mm Knauf | 9m² | 3.38 | R899 | R99.89/m² |
| 100mm Knauf | 12.12m² | 2.50 | R916 | R75.58/m² |
| 75mm Knauf | 15.36m² | 1.88 | R910 | R59.24/m² |
| 50mm Knauf | 22.80m² | 1.25 | R987 | R43.29/m² |
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Price Per Roll
Roll prices vary by thickness because coverage and thermal performance differ across the Knauf range.
Cost Per m²
Comparing cost per square metre gives a more useful material-cost comparison than roll price alone.
Compare Four Thicknesses
Compare 50mm, 75mm, 100mm and 135mm Knauf by thermal performance, coverage and material cost.
Knauf Supply & Professional Installation
Home Insulations supplies Knauf Earthwool glasswool ceiling insulation and provides professional installation for residential homes, retrofits and selected commercial projects.
Whether you are insulating a new ceiling, upgrading an existing home or adding top-up insulation, we can assist with both Knauf product supply and professional installation.
- ✓ Residential homes
- ✓ Existing home retrofits
- ✓ Top-up insulation
- ✓ Selected commercial projects
Technical Specifications
Knauf Product Specs
Select a Knauf thickness below to view detailed technical information.
135mm Knauf – Technical Specifications
| Brand | Knauf Earthwool |
|---|---|
| Product type | Ceiling Insulation |
| Material | Glasswool |
| Thickness | 135 mm |
| Nominal roll size | 1.2 m (W) × 7.5 m (L) |
| Coverage per roll | 9.00 m² |
| R-value | 3.38 m²·K/W |
| Density | 12 kg/m³ |
| K-value | 0.040 W/m·K |
| NRC | 1.13 |
| Binder technology | ECOSE® Technology |
| Fire classification | A1 Non-Combustible |
| Applications | Ceiling insulation, retrofit projects, new homes and insulation upgrades |
100mm Knauf – Technical Specifications
| Brand | Knauf Earthwool |
|---|---|
| Product type | Ceiling Insulation |
| Material | Glasswool |
| Thickness | 100 mm |
| Nominal roll size | 1.2 m (W) × 10.10 m (L) |
| Coverage per roll | 12.12 m² |
| R-value | 2.50 m²·K/W |
| Density | 12 kg/m³ |
| K-value | 0.040 W/m·K |
| NRC | 1.04 |
| Binder technology | ECOSE® Technology |
| Fire classification | A1 Non-Combustible |
| Applications | Ceiling insulation, retrofit projects, new homes and insulation upgrades |
75mm Knauf – Technical Specifications
| Brand | Knauf Earthwool |
|---|---|
| Product type | Ceiling Insulation |
| Material | Glasswool |
| Thickness | 75 mm |
| Nominal roll size | 1.2 m (W) × 12.8 m (L) |
| Coverage per roll | 15.36 m² |
| R-value | 1.88 m²·K/W |
| Density | 12 kg/m³ |
| K-value | 0.040 W/m·K |
| NRC | 0.93 |
| Binder technology | ECOSE® Technology |
| Fire classification | A1 Non-Combustible |
| Applications | Ceiling insulation, retrofit projects and insulation upgrades |
50mm Knauf – Technical Specifications
| Brand | Knauf Earthwool |
|---|---|
| Product type | Ceiling Insulation |
| Material | Glasswool |
| Thickness | 50 mm |
| Nominal roll size | 1.2 m (W) × 19.0 m (L) |
| Coverage per roll | 22.80 m² |
| R-value | 1.25 m²·K/W |
| Density | 12 kg/m³ |
| K-value | 0.040 W/m·K |
| NRC | 0.81 |
| Binder technology | ECOSE® Technology |
| Fire classification | A1 Non-Combustible |
| Applications | Ceiling insulation, retrofit and top-up insulation applications |
Need Knauf Supplied or Installed?
Get a Knauf Earthwool quote today for insulation supply or professional installation.