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Rockwool Insulation

Rockwool is a premium insulation product - made from volcanic rock melted at high temperatures and spun into a mat or batt of fine fibres.

Rockwool only burns at temperatures in excess of 850 celsius so in effect is very resistant to fire so can provide a fire barrier for your roof, walls or floor.

The other main benefit of Rockwool is that is about 4 times more dense than fibreglass insulation so has much better acoustic properties. So is often used when insulation requires both acoustic & thermal properties.

Forms: Rockwool insulation comes in batts, mats and loosefill

R-Value: Rockwool Insulations comes in a range of R value but because mostly used for acoustic in walls and floors most Rockwool products on the market seem to have a fairly low R values around R1.5 up to R3

Rockwool Insulation Uses:
Rockwool has a wide range of uses, Including

  • Insulation of Residential and Commercial Building
  • Insulate pipes
  • Ships & mobile homes and 
  • Domestic cooking appliances.

Advantages of Rockwool Insulation:

  • Relatively easy to install if ceiling space is open
  • Both Heating and Cooling properties
  • Reduces noise - Great Acoustic properties
  • Provides a Fire Barrier
  • Resistant to Insects and rodents
  • Made from 30-40% recycled building and slag waste
  • Does Not Shrink - keeps its R value over time.

 Disadvantages of Rockwool Insulation:

  • Is mainly used more for commercial purposes
  • Most home insulation installers do not stock it
  • Precautions need to be adhered to in handling, do to fine fibres.
  • High environmental impact in manufacturing process
  • Generally more expensive than other insulation products

Rockwool Insulation

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