Table of Contents

• Knauf Insulation Overview
• Benefits of Knauf Insulation
• Where Can Knauf Be Installed?
• Awards & Recognitions
• 200mm Knauf
• 150mm Knauf
• 135mm Knauf
• 100mm Knauf
• 75mm Knauf
• 50mm Knauf
• 63mm Acoustic Knauf
• Why Choose Us
• Frequently Asked Questions

Knauf Insulation – Earthwool with ECOSE Technology

Knauf Insulation is a high-performance, eco-friendly ceiling and wall insulation product trusted across South Africa. Manufactured using ECOSE® Technology, it contains no added formaldehyde, making it softer, safer, and more sustainable than many traditional glasswool products. Whether you’re insulating a new build or upgrading an older home, Knauf offers reliable comfort, energy savings, and long-term performance.

At Home Insulations, we supply and install Knauf Insulation in Johannesburg, Centurion, Pretoria, Cape Town, and Durban.

View our latest Insulation Prices

Benefits of Knauf Insulation

When it comes to creating a comfortable, efficient, and future-ready home, insulation matters — and Knauf delivers. Whether you’re looking to reduce rising electricity costs, block out street noise, or improve your property’s resale value, Knauf Insulation offers a smart, long-term solution. Trusted by professionals and homeowners alike, it’s designed to perform in South Africa’s demanding climate while supporting healthier living and lower environmental impact.

✅ Energy Savings – Cut heating and cooling costs by up to 30% year-round
✅ Thermal Comfort – Maintain stable indoor temperatures through all seasons
✅ Superior Sound Control – Reduces noise transfer between rooms and from outside
✅ Fire-Resistant – Non-combustible and A1 fire-rated for safer buildings
✅ Moisture-Resistant – Prevents mould, mildew, and condensation issues
✅ Healthier Air Quality – Low in VOCs and safe for homes with children and pets
✅ Eco-Friendly Materials – Made from recycled glass with natural binders
✅ SABS & SANS Compliant – Meets strict South African safety and performance standards
✅ Multiple Thicknesses – Available in 50mm, 75mm, 100mm, 135mm to suit your climate zone
✅ Easy to Handle & Install – Lightweight, flexible, and perfect for ceilings and walls
✅ Long-Lasting Performance – Reliable insulation for over 40 years with no maintenance
✅ Sustainable Manufacturing – Designed for minimal environmental impact and long-term value

Where Can Knauf Insulation Be Installed?

• Residential homes
• Apartments and townhouses
• Office ceilings and partition walls
• Commercial and retail spaces
• Hospitals and schools
• Between floors and cavity walls for sound insulation

Knauf Insulation is suitable for both new construction and retrofit projects, offering a cleaner, greener solution for thermal and acoustic insulation in South Africa.

Knauf Insulation Awards & Recognitions

✅ Global Innovation Award (2025) – Awarded by NAHB’s Nationals for the advanced Performance+® fiberglass insulation system
✅ Global Insulation Awards (2019) – Plant of the Year for the Illange, France manufacturing facility; Innovation of the Year for breakthrough insulation technologies; Triple Award Winner at the event
✅ Eurofins Indoor Air Comfort Gold Certification – First global glasswool products to achieve this leading indoor air quality rating
✅ Blue Angel Environmental Label – Recognized by Germany for sustainable, low-emission product standards
✅ Eurobaustoff Innovation Award (2009) – Honoured for the development and launch of ECOSE® Technology
✅ Award for Energy Efficiency & Renewables (Spain) – Celebrated for contributions to green building and sustainable performance

200mm Knauf Insulation (Double Layer of 100mm)

For maximum thermal performance, 200mm Knauf insulation is created by installing two layers of 100mm Knauf. This double-layer setup delivers a powerful combined R-value of 5.0, making it ideal for high-performance homes, off-grid buildings, and colder regions across South Africa. It’s the perfect solution when superior comfort and energy efficiency are your top priorities.

• Brand: Knauf
• Material: Glass Mineral Wool
• Thickness: 200mm Knauf (2 × 100mm Knauf layers)
• Length: 10,000mm per roll (100mm layer)
• Width: 1,200mm
• Coverage: 12m² per roll per roll (per 100mm layer)
• SABS Approved: ✅ Yes
• SANS Compliant: ✅ Yes
• Fire Rating: Euroclass A1 (non-combustible)
• R-Value: 5.0
• Density: 12kg/m³ (per layer)

Choose 200mm Knauf insulation when you need the highest level of ceiling thermal protection available in South Africa. With a professional double-layer installation using 100mm Knauf, you get unmatched performance, safety, and indoor comfort. It’s ideal for clients who want to reduce heating and cooling costs year-round while building to the highest insulation standards. Trusted across Johannesburg, Cape Town, Durban, Pretoria, and Centurion — this solution takes insulation to the next level.

150mm Knauf Insulation (Double Layer of 75mm)

Upgrade your thermal protection with 150mm Knauf insulation, created by installing two layers of 75mm Knauf Earthwool — ideal for homeowners and developers looking to exceed standard ceiling insulation performance. With a combined R-value of 3.76, this double-layer setup helps keep South African homes cooler in summer and warmer in winter, especially in colder regions like the Western Cape and high-lying inland areas.

Engineered with ECOSE® Technology, Knauf Earthwool is soft to the touch, low in VOCs, and made from recycled glass without added formaldehyde. This makes it safe to install and breathable for your living spaces, all while delivering exceptional fire resistance (Euroclass A1) and acoustic comfort.

Product Specifications

• Brand: Knauf
• Material: Glass Mineral Wool
• Thickness: 150mm Knauf (2 × 75mm Knauf layers)
• Length: 12,800mm per roll (75mm layer)
• Width: 1,200mm
• Coverage: 15.36m² per roll (per 75mm layer)
• SABS Approved: ✅ Yes
• SANS Compliant: ✅ Yes
• Fire Rating: Euroclass A1 (non-combustible)
• R-Value: 3.76
• Density: 12kg/m³ (per layer)

With our professional double-layer installation, the 150mm Knauf solution ensures there are no thermal gaps, delivering consistent performance across your ceiling. Perfect for homes that demand enhanced energy efficiency without sacrificing comfort or indoor air quality.

135mm Knauf Insulation

Maximise comfort and efficiency with 135mm Knauf Insulation, the premium glass mineral wool solution for South African homes. With an R-value of 3.38 and 9m² coverage per roll, this high-performance insulation is ideal for achieving SANS-compliant thermal protection in colder areas like Johannesburg, Pretoria, and Cape Town. Manufactured using innovative ECOSE® Technology, it’s free from added formaldehyde, soft to the touch, and designed for healthier indoor air quality.

The 135mm Knauf has a Euroclass A1 non-combustible fire rating and superior acoustic performance making it ideal for ceilings, walls, and between floors — providing long-term energy savings and noise reduction without compromising on safety or sustainability.

Product Specifications

• Brand: Knauf
• Material: Glass Mineral Wool
• Thickness: 135mm Knauf
• Length: 7500mm
• Width: 1200mm
• Coverage: 9m² per roll
• SABS Approved: ✅ Yes
• SANS Compliant: ✅ Yes
• Fire Rating: Euroclass A1 (non-combustible)
• R-Value: 3.38
• Density: 12kg/m³
• NRC (Noise Reduction Coefficient): 1.13

Choose 135mm Knauf Insulation for outstanding thermal and acoustic performance that lasts. With its ECOSE® binder and natural, low-emission formulation, it delivers safe, effective roof insulation for modern South African homes. Whether you’re building new or retrofitting, the 135mm Knauf offers reliable, SABS-approved performance — all while helping you save on electricity and live more comfortably. Get a quote today or order online for fast delivery and expert installation.

100mm Knauf Insulation

Improve comfort and reduce energy bills with 100mm Knauf Insulation, a trusted solution for thermal and acoustic performance in South African homes. With an R-value of 2.50 and 12m² coverage per roll, this mid-range insulation is ideal for regions with moderate climates like Durban.

Manufactured with ECOSE® Technology, the 100mm Knauf is soft to handle, free from added formaldehyde, and designed for healthier indoor air. Its lightweight, compression-packed format makes it easy to install in both new buildings and retrofit projects, while its Euroclass A1 fire rating ensures maximum safety in ceilings and walls.

Product Specifications

• Brand: Knauf
• Material: Glass Mineral Wool
• Thickness: 100mm Knauf
• Length: 10000mm
• Width: 1200mm
• Coverage: 12m² per roll
• SABS Approved: ✅ Yes
• SANS Compliant: ✅ Yes (Durban)
• Fire Rating: A1 (non-combustible)
• R-Value: 2.50
• Density: 12kg/m³
• NRC (Noise Reduction Coefficient): 1.04

Choose 100mm Knauf Insulation for reliable all-season comfort and long-term performance. Whether you’re insulating ceilings, walls, or internal partitions, this versatile product delivers energy savings and sound control without compromising on indoor air quality. Order online or request a free quote for expert supply and installation across South Africa.

75mm Knauf Insulation

Get effective, lightweight insulation with 75mm Knauf Insulation, ideal for internal walls, partitions, and areas where moderate thermal and acoustic performance is needed. With an R-value of 1.88 and 15.36m2 coverage per roll, this versatile insulation strikes a balance between performance and flexibility — perfect for both residential and commercial projects.

Manufactured using ECOSE® Technology, the 75mm Knauf insulation is soft to handle, low in VOCs, and free from added formaldehyde. It’s easy to cut and install, making it a great choice for quick upgrades or new construction. Whether used in ceilings or walls, Knauf delivers long-lasting thermal comfort, noise control, and improved energy efficiency.

Product Specifications

• Brand: Knauf
• Material: Glass Mineral Wool
• Thickness: 75mm Knauf
• Length: 12800mm
• Width: 1200mm
• Coverage: 15.36m2 per roll
• SABS Approved: ✅ Yes
• SANS Compliant: ❌ No
• Fire Rating: Euroclass A1 (non-combustible)
• R-Value: 1.88
• Density: 12kg/m³
• NRC (Noise Reduction Coefficient): 0.93

Choose 75mm Knauf Insulation when you need dependable thermal and sound performance in a slimmer profile. It’s a smart choice for partition walls, flat roof spaces, and internal ceilings where space is limited but performance still matters. Contact us today for a free quote or place your order online for fast delivery and professional installation.

50mm Knauf Insulation

Enhance your soundproofing and interior comfort with 50mm Knauf Insulation, a compact, lightweight glass mineral wool solution designed for internal applications. With an R-value of 1.25 and 22.8m2 coverage per roll, this product is ideal for partition walls, internal ceilings, and between-floor installations where thermal insulation and acoustic control are both needed.

Made using ECOSE® Technology, the 50mm Knauf is softer, safer, and free from added formaldehyde — making it a healthier choice for indoor environments. While not typically used as a standalone ceiling insulation, 50mm Knauf performs well as a top-up layer.

Product Specifications

• Brand: Knauf
• Material: Glass Mineral Wool
• Thickness: 50mm Knauf
• Length: 19000mm
• Width: 1200mm
• Coverage: 22.8m2 per roll
• SABS Approved: ✅ Yes
• SANS Compliant: ❌ No
• Fire Rating: Euroclass A1 (non-combustible)
• R-Value: 1.25
• Density: 12kg/m³
• NRC (Noise Reduction Coefficient): 0.81

Choose 50mm Knauf Insulation for targeted acoustic performance and light thermal control in confined spaces. It’s an excellent choice for walls, between floors, or as an additional insulation layer where a low-profile solution is required. Request a quote today or order online for fast delivery across South Africa.

63mm Knauf Acoustic Insulation

Achieve superior sound control with 63 mm Knauf Acoustic Insulation, a specialist glass mineral wool roll designed for partition walls and suspended/floor-ceiling applications. With a generous 15 m length, 1.2 m width, and 18 m² coverage per roll, this product reduces acoustic bridging and ensures seamless installation without unwanted joints.

This high-density (14 kg/m³) A1-rated insulation delivers excellent sound absorption while also providing thermal performance and fire safety. Perfect for internal partitions, stud walls, and acoustic ceiling linings, Knauf Acoustic Insulation is easy to handle, cut, and fit — delivering quiet, comfortable spaces across residential and commercial projects in South Africa.

Product Specifications

• Brand: Knauf

• Product: Acoustic Roll

• Material: Glass mineral wool

• Thickness: 63 mm Knauf

• Length: 15000 mm

• Width: 1200 mm

• Coverage: 18 m² per roll

• SABS/SANS Compliant: Yes

• Fire Rating: Euroclass A1 (non-combustible)

• Density: 14 kg/m³

• Thermal Conductivity: 0.044 W/m·K

• Sound Absorption: Engineered to significantly reduce sound transmission

Choose 63 mm Knauf Acoustic Insulation to create quieter, more peaceful indoor environments. Its tailored design closes acoustic gaps in stud partitions and floor-ceiling assemblies, all while ensuring fire safety and thermal consistency. Get a quote today or order online for prompt delivery and expert installation across South Africa.

Knauf Insulation Prices & Cost in South Africa

Knauf insulation prices are among the most competitive for premium products in South Africa, offering exceptional value for long-lasting thermal, acoustic, and fire protection. Our Knauf price list below shows exactly what you can expect to pay for this advanced glasswool insulation.

Whether you’re comparing Knauf costs for a new build or an upgrade, it’s perfectly suited to South African climate conditions — making it the go-to choice for homeowners, architects, and builders alike.

Below is our current Knauf insulation price list, showing exactly what you can expect to pay:

✅ 200mm Knauf Price– R1,832 per roll or R153 per m² (12m² coverage)
✅ 150mm Knauf Prices – R1,820 per roll or R119 per m² (15.36m² coverage)
✅ 135mm Knauf Price – R899 per roll or R100 per m² (9m² coverage)
✅ 100mm Knauf Prices – R916 per roll or R77 per m² (12m² coverage)
✅ 75mm Knauf Price – R910 per roll or R60 per m² (15.36m² coverage)
✅ 50mm Knauf Prices – R987 per roll or R44 per m² (22.8m² coverage)

Please note: These Knauf prices exclude installation.

Knauf Earthwool is ideal if you’re looking for sustainable, long-lasting insulation with excellent soundproofing and fire resistance. Investing in Knauf pays off quickly through reduced energy bills and increased home comfort.

Why Choose Home Insulations?

We’ve installed thousands of square meters of Knauf insulation across South Africa. Here’s why homeowners and contractors trust us:

✅ Over 30 years of insulation experience
✅ Friendly, trained installers
✅ Prompt delivery and professional installation
✅ Branches in Johannesburg, Centurion, Pretoria, Cape Town & Durban
✅ We only use genuine Knauf Products (no imitation products)

Frequently Asked Questions