glass wool insulation south africa

Glass Wool Insulation Price

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When it comes to insulating your home or office, you want a product that is effective, safe, and environmentally friendly. Glass wool insulation is one such product that can provide all of these benefits. In this article, we’ll take a look at what it is, its benefits, how it is installed, and where you can find it in South Africa.

What is Glass Wool Insulation?

Glass wool insulation is a type of insulation material made from glass fibers. It is a popular and cost-effective insulation solution that is used in residential and commercial buildings to improve energy efficiency and reduce heat loss.

It’s made by melting glass at high temperatures and then spinning it into fibers using a special manufacturing process. The fibers are then compressed into batts, rolls or blown-in insulation, which can be installed in walls, roofs, floors, and attics to provide thermal resistance and improve the overall energy efficiency of a building.

Known for its high R-value, which is a measure of its thermal resistance, and its ability to reduce sound transmission. It is also fire-resistant and does not emit harmful gases or chemicals, making it an eco-friendly insulation solution.

Benefits of Glass Wool Insulation

There are several benefits to using glass wool insulation in your home or office:

  1. Energy Savings: Can help reduce energy consumption by up to 40% by keeping your home or office cooler in the summer and warmer in the winter. This means you’ll save money on your energy bills and reduce your carbon footprint.
  2. Soundproofing: Is an effective sound barrier, reducing noise levels and creating a more peaceful and comfortable living or working environment.
  3. Fire Resistance: Non-combustible and has a high fire resistance rating, making it a safe choice for your home or office.
  4. Environmentally Friendly: Made from recycled materials and is itself recyclable, making it an environmentally friendly choice.

How Much Does Glasswool Insulation Cost in South Africa?

The cost of glass wool insulation in South Africa may vary depending on several factors, such as the quality of the material, the thickness of the insulation, the area to be covered, and the installation method.

Generally, the cost of glass wool insulation in South Africa ranges from around R80 to R120 per square meter. However, it is important to note that these prices are for the insulation material only and do not include the cost of installation, which can vary depending on the contractor or service provider.

Glass Wool Insulation Products in South Africa

There are several glass wool insulation products available in South Africa from various manufacturers and suppliers. Some of the popular products in South Africa include:

  1. Knauf: Knauf Insulation is a manufacturer of products for residential and commercial buildings. Their products are designed to provide high thermal performance and are eco-friendly.
  2. Aerolite: Aerolite is a brand that is designed to provide excellent thermal and acoustic insulation. Their insulation products are available in a range of thicknesses and densities to suit different building applications.
  3. Energylite: Type of industrial insulation product that is manufactured from non-combustible glass wool bonded with an inert thermosetting resin to form a strong, resilient product. It is available in batts and blankets and is suitable for any application up to 450°C.
  4. Factorylite: Type of commercial and industrial roofing insulation made from high-quality, non-combustible, flexible glass wool with an inert binder that makes the product lightweight, safe, and resilient. It is generally installed compressed between straining wires/steel purlins and the roof and cladding sheeting.
  5. Rockwool: Fibrous material formed by spinning or drawing molten minerals or rocks such as slag and ceramics. It has several applications, including thermal insulation, filtration, soundproofing, and hydroponic growth medium.
  6. Cavitybatt: Used in construction to insulate walls in residential and commercial buildings. It is manufactured using high-quality glass wool and is glass tissue faced on one side for ease of handling and improved rigidity. Cavitybatt has been specially developed for use within steel frame structures, timber frame buildings, and drywall systems.

There are many glass wool insulation products available in South Africa, each with its own unique features and benefits. It is important to consult with a professional insulation contractor to determine the best product for your specific building and insulation needs.

How is Glass Wool Insulation Installed?

Its installed by laying the fiberglass between walls, floors, or ceilings. It is important to wear protective clothing, such as gloves and a mask, when handling it, as the fibers can be irritating to the skin and lungs.


Glass wool insulation is a highly effective and environmentally friendly solution for insulating your home or office. Its benefits include energy savings, soundproofing, fire resistance, and eco-friendliness. When installing the product, it is important to take proper safety precautions, and you can find it in South Africa from various companies.


How long does it last?

It can last around 30 – 50 years if installed properly.

Is it fire-resistant?

Yes, it is non-combustible and has a high fire resistance rating.


glass wool insulation prices

Glass Wool Insulation Price

Select Your Area Below to Contact a Professional: