Mineral wool insulation installed between wall studs

Mineral Wool Insulation

Mineral wool insulation is a broad category of insulation materials manufactured from mineral-based raw materials. It includes different insulation types that vary in density, structure, and performance, making mineral wool suitable for residential, commercial, and industrial applications.

This page serves as an overview of mineral wool insulation products available from Insulation Warehouse and groups products by material type to help buyers quickly identify the most suitable option.


Types of Mineral Wool Insulation

Mineral wool is not a single product. It is a classification that includes two distinct insulation materials:

  • Glasswool – lightweight mineral wool commonly used in building applications
  • Stone wool – high-density mineral wool used in fire-rated and acoustic applications

Each material type is suited to different performance requirements and environments.


Glasswool Insulation

Glasswool is a lightweight mineral wool insulation manufactured from recycled glass and sand. It is widely used in residential and commercial buildings where thermal and acoustic insulation is required.

Glasswool insulation is commonly specified for:

  • Ceiling insulation
  • Roof insulation above ceiling level
  • Wall insulation
  • Residential and light commercial buildings

Glasswool Insulation Products


64kg Energylite glasswool insulation batts
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64kg Energylite Batts

Price range: R2 442,00 through R2 999,00 incl. VAT
47.5kg Energylite glasswool insulation batts for industrial and commercial use
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47.5kg Energylite Batts

Price range: R2 293,00 through R2 593,00 incl. VAT
24kg Energylite glasswool insulation batts
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24kg Energylite Batts

Price range: R1 064,00 through R2 118,00 incl. VAT
50mm Alucool foil-faced insulation roll 12m²
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50mm Alucool

Price range: R979,00 through R1 015,00 incl. VAT
75mm Alucool foil-faced insulation roll 12m²
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75mm Alucool

Price range: R1 082,00 through R1 129,00 incl. VAT
100mm Alucool foil-faced insulation roll 12m²
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100mm Alucool

Price range: R1 266,00 through R1 310,00 incl. VAT
135mm Alucool foil-faced glasswool roll. High R-value thermal insulation for commercial and industrial roofs. Non-combustible A/A1 fire-rated.
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135mm Alucool

Price range: R1 550,00 through R1 620,00 incl. VAT

Stone Wool Insulation

Stone wool is a high-density mineral wool insulation manufactured from volcanic rock such as basalt. It is designed for applications where higher fire resistance, acoustic control, mechanical strength, and temperature stability are required.

Stone wool insulation is commonly used for:

  • Fire-rated insulation systems
  • Industrial insulation applications
  • Acoustic and soundproofing insulation
  • High-temperature environments

View the full range of Rockfibre insulation boards and matts.


Stone Wool Insulation Products


160kg Rockfibre stone wool insulation board for fire-rated and acoustic applications
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160kg Rockfibre Boards

Price range: R2 577,00 through R2 770,00 incl. VAT
120kg Rockfibre insulation boards for fire-rated and acoustic applications
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120kg Rockfibre Boards

Price range: R2 324,00 through R2 461,00 incl. VAT
100kg Rockfibre insulation boards for fire-rated and acoustic applications
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100kg Rockfibre Boards

Price range: R2 020,00 through R2 158,00 incl. VAT
80kg Rockfibre insulation boards for fire-rated and acoustic applications
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80kg Rockfibre Boards

Price range: R1 516,00 through R1 599,00 incl. VAT
60kg rockfibre insulation board for fire-rated and acoustic applications
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60kg Rockfibre Boards

Price range: R1 017,00 through R1 594,00 incl. VAT
160kg Rockfibre wired stone wool insulation mat for high-temperature and fire-rated industrial applications
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160kg Rockfibre Wired Mats

Price range: R2 579,00 through R3 148,00 incl. VAT
120kg Rockfibre wired stone wool insulation mat for fire-rated and high-temperature applications
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120kg Rockfibre Wired Mats

Price range: R2 009,00 through R2 864,00 incl. VAT
100kg rockfibre wired mat mineral wool insulation for high temperature fire rated and acoustic applications
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100kg Rockfibre Wired Mats

Price range: R1 725,00 through R2 649,00 incl. VAT
80kg rockfibre wired mat mineral wool insulation for high temperature fire rated and acoustic applications
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80kg Rockfibre Wired Mats

Price range: R1 640,00 through R2 209,00 incl. VAT

Choosing Between Glasswool and Stone Wool

While both glasswool and stone wool fall under the mineral wool category, the correct material depends on application requirements.

Glasswool insulation is typically selected for building insulation applications where lightweight handling, flexibility, and cost efficiency are important.

Stone wool insulation is selected where higher fire resistance, acoustic performance, rigidity, or temperature resistance is required.

For detailed material properties, specifications, and product options, refer to the dedicated Glasswool and Stone Wool material pages.