R4.0 Wall Insulation

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R2.0-R4.0
Knauf Insulation

Knauf Earthwool Sound Shield Insulation Batts

75-140 mm | Glasswool
4.91 (11)
  • Available from R2 to R3.1 to suit different climates
  • Softer to handle than standard glasswool, thanks to the ECOSE bio-based binder
from$8.69/m²
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R2.5-R4.0
Jeanius

Jeanius Wall Denim Insulation Batts

90-140 mm | Denim
  • Wall options from R2.5 to R4 to match your comfort target
  • Non-itch and safe to handle, so no gloves or mask needed and great for DIY
from$24.10/m²
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R4.0 wall insulation is the high end for walls: cold-climate thermal performance, or a quiet room where both heat and noise matter.

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Tell us your roof type, postcode and rough area, and we'll narrow it to a couple of options.