What are the Different Types of Insulation

Choosing the right insulation material is one of the most important decisions when improving your home’s energy efficiency. Different insulation products offer varying levels of performance, cost and installation requirements.

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Glass Wool Insulation (Knauf & Aerolite)

Glass wool insulation is one of the most widely used materials in South Africa.

Key benefits:

  • Excellent thermal performance
  • Cost-effective
  • Easy to install

This type of insulation is ideal for residential roof spaces and is commonly supplied in rolls.

 

Polyester Insulation

Polyester insulation is made from recycled materials and is a non-irritating alternative to traditional glass wool.

Advantages:

  • Safe to handle
  • Durable
  • Environmentally friendly

 

Rigid Foam Insulation (Isoboard / XPS)

Rigid boards are commonly used in ceiling systems and provide high thermal resistance.

Benefits:

  • Strong and durable
  • Moisture resistant
  • High insulation performance

 

Acoustic Insulation

Acoustic insulation is designed to reduce noise while also providing thermal benefits.

Ideal for:

  • Offices
  • Apartments
  • Homes near busy areas

 

Comparing Insulation Types

When selecting insulation, consider:

  • Thermal performance (R-value)
  • Cost per m²
  • Installation method
  • Long-term durability

Each material has its place depending on your specific needs.

 

 

Which Insulation is Best?

There is no one-size-fits-all solution. The best insulation depends on your:

  • Budget
  • Property type
  • Performance requirements

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Final Thoughts

Understanding the different types of insulation helps you make informed decisions when upgrading your home.

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