Cavitybatt™ & Cavitylite® – High-Performance Insulation for Drywall, Steel Frame, and Timber Frame.
Cavitybatt™ & Cavitylite® are high-performance glasswool insulation products specifically engineered for steel frame buildings, timber frame structures, and drywall systems. Designed to provide superior thermal and acoustic insulation, these products contribute to energy efficiency and enhanced indoor comfort.
Their glass tissue facing not only improves ease of handling during installation but also adds structural rigidity, ensuring long-lasting performance. Whether used in residential, commercial, or industrial applications, Cavitybatt™ & Cavitylite® offer reliable insulation solutions that meet modern building standards.
For more than 30 years, we have been reliable insulation suppliers and installers, serving customers since 1992. Our vast experience covers all types of roof insulation, from residential homes to large-scale commercial and industrial projects. Through decades of dedication, we have refined our expertise, allowing us to provide high-quality solutions tailored to each client’s specific needs. With a proven track record, our knowledge and skill set us apart in the insulation industry.
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Cavitybatt™ Drywall Insulation (51mm x 1200mm x 600mm)
- R-Value: 1.34 m².K/W
- Thickness: 51mm
- Dimensions: 1200mm (Length) x 600mm (Width)
- Density: 14 kg/m³
- K-Value (Thermal Conductivity): 0.038 W/m.K
- Applications:
- Suitable for drywall systems, cavity walls, timber frame, and steel frame structures.
- Provides thermal insulation for energy efficiency and acoustic absorption for noise reduction.
- Ideal for residential and commercial projects.
- Features & Benefits:
- Lightweight and easy to install.
- Non-combustible, meeting SANS 10177 Part 5 & EN 13501-1 (A/A1/1) fire ratings.
- Eco-friendly, made from recycled glass with zero ODP & GWP.
- Glass tissue facing for improved rigidity and handling.
- Compression-packed for easy transport and storage.
Cavitybatt™ Drywall Insulation (63mm x 1200mm x 600mm)
- R-Value: 1.66 m².K/W
- Thickness: 63mm
- Dimensions: 1200mm (Length) x 600mm (Width)
- Density: 14 kg/m³
- K-Value (Thermal Conductivity): 0.038 W/m.K
- Applications:
- Designed for steel and timber frame buildings, drywall cavities, and cavity walls.
- Provides enhanced thermal resistance and superior acoustic insulation.
- Recommended for homes, offices, and industrial spaces needing better energy efficiency.
- Features & Benefits:
- Non-combustible and compliant with SANS & EN fire safety standards.
- Soundproofing capabilities to reduce noise transmission.
- Lightweight and easy to cut, allowing a seamless fit into cavities.
- Glass tissue facing ensures durability and simple installation.
- Sustainable product, meeting ISO 14001:2015 environmental guidelines.
Cavitybatt™ Drywall Insulation (102mm x 1200mm x 600mm)
- R-Value: 2.68 m².K/W
- Thickness: 102mm
- Dimensions: 1200mm (Length) x 600mm (Width)
- Density: 14 kg/m³
- K-Value (Thermal Conductivity): 0.038 W/m.K
- Applications:
- Best suited for high-performance thermal and acoustic insulation.
- Ideal for drywall partitions, cavity walls, and structural steel or timber frame systems.
- Provides maximum energy efficiency and soundproofing in both residential and commercial spaces.
- Features & Benefits:
- Highest R-value for improved insulation performance.
- Non-combustible, fire-rated to SANS 10177 Part 5 & EN 13501-1 (A/A1/1).
- Excellent noise reduction, making it perfect for offices, studios, and multi-story buildings.
- Durable and lightweight, with a glass tissue facing for enhanced handling.
- Compression-packed to optimize storage and transport.
- Environmentally friendly, made from recycled materials with zero ODP & GWP.

GLASSWOOL INSULATION
Cavitybatt And Cavitylite Prices in South Africa
Cavitybatt™ and Cavitylite® prices in South Africa vary depending on the thickness, size, and supplier. Generally, Cavitybatt™ insulation, available in 51mm, 63mm, and 102mm thicknesses, is priced based on its thermal and acoustic performance. Cavitylite®, offered in similar sizes but in roll form, may have a slightly different pricing structure due to its application versatility. Factors such as bulk purchases, location, and supplier discounts can also impact the final cost.
Cavitylite® Drywall Insulation (51mm x 6000mm x 600mm)
- R-Value: 1.34 m².K/W
- Thickness: 51mm
- Dimensions: 6000mm (Length) x 600mm (Width) (Slit into 2 x 600mm sections)
- Density: 14 kg/m³
- K-Value (Thermal Conductivity): 0.038 W/m.K
- Applications:
- Ideal for drywall cavities, steel and timber frame structures, and cavity walls.
- Designed for thermal efficiency and acoustic performance in both residential and commercial buildings.
- Suitable for ceilings, partition walls, and soundproofing applications.
- Features & Benefits:
- Lightweight and easy to handle, with a glass tissue facing for added rigidity.
- Energy-efficient, helping to reduce heat loss in winter and heat gain in summer.
- Non-combustible, tested to SANS 10177 Part 5 & EN 13501-1 (A/A1/1) fire safety standards.
- Environmentally friendly, made from recycled glass with zero ODP & GWP.
- Compression-packed, reducing storage space and making transportation more efficient.
Cavitylite® Drywall Insulation (63mm x 5400mm x 600mm)
- R-Value: 1.66 m².K/W
- Thickness: 63mm
- Dimensions: 5400mm (Length) x 600mm (Width) (Slit into 2 x 600mm sections)
- Density: 14 kg/m³
- K-Value (Thermal Conductivity): 0.038 W/m.K
- Applications:
- Suitable for timber and steel frame construction, drywall partitions, and cavity walls.
- Provides enhanced thermal resistance for energy-efficient buildings.
- Helps in reducing noise transmission, improving indoor acoustic quality.
- Features & Benefits:
- Lightweight and flexible, allowing for easy installation and handling.
- Glass tissue facing improves durability and installation efficiency.
- Superior soundproofing properties, reducing external and internal noise.
- Fire-resistant, meeting SANS & EN fire classification standards.
- Sustainable and eco-friendly, with zero ODP & GWP.
- Compression-packed, optimizing transport and storage.
Cavitylite® Drywall Insulation (102mm x 5400mm x 600mm)
- R-Value: 2.68 m².K/W
- Thickness: 102mm
- Dimensions: 5400mm (Length) x 600mm (Width) (Slit into 2 x 600mm sections)
- Density: 14 kg/m³
- K-Value (Thermal Conductivity): 0.038 W/m.K
- Applications:
- Ideal for high-performance thermal and acoustic insulation in drywall systems.
- Suitable for steel and timber frame construction, cavity walls, and ceilings.
- Best choice for buildings requiring maximum energy efficiency and noise reduction.
- Features & Benefits:
- Highest thermal performance (R-Value of 2.68) for superior energy savings.
- Soundproofing insulation, perfect for homes, offices, hotels, and industrial spaces.
- Non-combustible, tested to SANS 10177 Part 5 & EN 13501-1 (A/A1/1) fire safety standards.
- Glass tissue facing for easier handling and improved strength.
- Eco-friendly, made from recycled materials with zero ozone depletion potential (ODP) & global warming potential (GWP).
- Compression-packed for easy storage and reduced transportation costs.


Frequently Asked Questions
What is the difference between Cavitybatt™ and Cavitylite®?
Cavitybatt™ is available in pre-cut batt form, while Cavitylite® comes in roll form, allowing for different installation preferences. Both are designed for drywall, steel frame, and timber frame applications.
What are the main benefits of using Cavitybatt™ and Cavitylite®?
They provide excellent thermal insulation, superior soundproofing, and are non-combustible, improving energy efficiency and fire safety in buildings.
Are Cavitybatt™ and Cavitylite® fire-resistant?
Yes, both products are non-combustible and tested according to SANS 10177 Part 5 & EN 13501-1 (A/A1/1) fire safety standards, making them safe for residential and commercial use.
Are these insulation products eco-friendly?
Yes, they are manufactured using recycled glass, have zero ozone depletion potential (ODP) and zero global warming potential (GWP), and comply with ISO 14001:2015 environmental standards.
Where can these products be used?
They are ideal for drywall partitions, cavity walls, timber and steel frame structures, as well as ceilings and roof insulation for better thermal and acoustic performance.
How do I install it?
Simply insert the insulation into the cavity space with the glass tissue facing outward. Use a sharp knife to cut around pipes, electrical outlets, and any obstructions for a perfect fit.
Does it help with soundproofing?
Yes, both products offer exceptional acoustic insulation, reducing noise transmission between rooms and from external sources.
What thickness should I choose for my insulation needs?
The thickness depends on your thermal and acoustic requirements:
- 51mm (R-Value 1.34) – Standard insulation needs
- 63mm (R-Value 1.66) – Improved thermal performance
- 102mm (R-Value 2.68) – Maximum insulation efficiency
How much does it cost in South Africa?
Prices vary based on thickness, supplier, and location. Bulk purchases may offer better pricing. It’s recommended to request a quote from insulation suppliers for the best deals.
Where can I buy it in South Africa?
These products are available from insulation suppliers, hardware stores, and construction material distributors nationwide. Many suppliers also offer delivery and bulk order discounts.