Wool insulation

Natural wool insulation:
Is a preferred insulation option for people with asthma and allergies.

The composition of natural wool insulation means that the maximum R-Value for a 90mm standard wall is lower than a non-natural alternative insulation.

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Wool is a sustainable, allergen-free, natural form of insulation that provides an environmentally friendly alternative to fibreglass or polystyrene.

How it works

Wool insulation works in a similar way to fibreglass – by creating a pocket of still air around the house. For in-wall installations wool tends to be slightly less effective than fibreglass, because it has lower R-Values. However in ceilings natural insulation can be equivalent to fibreglass insulation (unless the size of the ceiling cavity is restricted).

How it’s made

Some wool insulation is 100% natural with a binding compound while other wool insulation is a blend of natural wool and fibreglass (or some other material). The use of wool blended with other materials is usually done to achieve a suitable R-Value.

Why it’s good


  • All natural product
  • Allergen-free
  • Moderate R-Values
  • Renewable and sustainable
  • Naturally flame-retardant
  • Reacts well to moisture

Is it safe?

Wool is extremely safe as it is a natural product. The fibres don’t irritate because they are individually too large to harm the lungs/skin.

How much will it cost?

A 100% natural wool insulation is more expensive than the equivalent in fibreglass insulation. The typical cost for a 100% natural wool insulation is:

Ceiling insulation: $20 per m2 for R3.2 installed
Wall insulation: $19 per m2 for R2.5 installed

To obtain a quote for your home contact a Right House Sales Consultant.

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