Knauf Insulation
- You must order a minimum of 3.
135mm Knauf
R899.0075mm Knauf
Original price was: R955.00.R910.00Current price is: R910.00.100mm Knauf
Original price was: R965.00.R916.00Current price is: R916.00.50mm Knauf
Original price was: R1,037.00.R987.00Current price is: R987.00.Knauf Ceiling Insulation Rolls in South Africa
Knauf Earthwool is a glasswool ceiling insulation range designed for thermal, acoustic, and fire performance in homes and buildings. Knauf is available in several thicknesses, allowing the right product to be selected according to the required R-value, available space and project requirements
Home Insulations supplies and installs Knauf insulation, with different thicknesses available depending on the thermal performance required, the application and the available roof or ceiling space.
Choose a Knauf product above to view the exact price, roll size, coverage, R-value and product specifications, or contact us if you would like a quote for professional installation.
Knauf insulation prices in Johannesburg and Pretoria
Comparing the roll price alone can be misleading because each thickness covers a different area. The table below shows the current roll price and approximate material cost per square meter.
| Thickness | R-value | Coverage | Roll price | Approx. price/m² |
|---|---|---|---|---|
| 50mm Knauf | 1.25 | 22.80m² | R987 | R43.29/m² |
| 75mm Knauf | 1.88 | 15.36m² | R910 | R59.24/m² |
| 100mm Knauf | 2.50 | 12.12m² | R916 | R75.58/m² |
| 135mm Knauf | 3.38 | 9.00m² | R899 | R99.89/m² |
Prices are for insulation material only. Installation is quoted separately.
Where these ceiling insulation rolls are used
It’s commonly used for thermal insulation in ceilings and suitable roof applications. The appropriate product depends on the construction, available space and required thermal performance.
For detailed application guidance, see our Ceiling Insulation and Roof Insulation pages.
Professional Knauf insulation installation
We also provide professional installation of Knauf Earthwool insulation. For installation projects, we can help determine the appropriate insulation thickness and quantity based on the ceiling or roof area and the requirements of the building.
Installation may include:
- New ceiling insulation
- Roof insulation
- Upgrading existing insulation
- Adding insulation to homes with insufficient existing coverage
- Replacing unsuitable or deteriorated insulation where required
For an installation quote, provide the approximate floor or ceiling area together with the property location.
Why choose Earthwool?
Knauf ceiling insulation offers a strong combination of thermal performance, sound absorption, fire safety and easy installation across a range of thicknesses.
- Strong thermal performance – available in multiple thicknesses to suit different insulation requirements.
- Excellent sound absorption – glass mineral wool helps reduce airborne noise and improve acoustic comfort.
- A1 non-combustible fire rating – provides a high level of fire safety.
- ECOSE Technology – manufactured using Knauf’s ECOSE binder technology.
- Lightweight material – easy to handle, transport and install.
- Flexible insulation – fits neatly between ceiling joists, rafters and other framing.
- Suitable for upgrades – can be added where existing insulation is insufficient.
- Suitable for new installations – works well in new residential and commercial insulation projects.
- Consistent performance – manufactured to provide reliable thermal resistance across the product range.
- Thermal and acoustic insulation in one product – improves both temperature control and sound absorption.
- Available in multiple thicknesses – gives you flexibility when balancing space, performance and budget.
- Established insulation brand – Knauf is a major manufacturer of glass mineral wool insulation.
Knauf ceiling insulation compared with other products
Knauf Earthwool is one of several insulation products available for ceilings and roofs. If you are still deciding which material is appropriate for your project, see our comparison guides:
These comparisons help explain the differences between the insulation materials, their thermal performance and their typical applications.
Need help choosing a thickness?
Not sure which Knauf product is right for your project? Contact Home Insulations for product advice, supply or an installation quotation.