Under Floor Insulation

Earthwool glasswool insulation

The feel good insulation from KNAUF


Cost-effective thermal for energy-efficient construction.

50 Year Warranty from KNAUF Insulation.

R Value: 

R1.5 2700 x 470


Easy, no special tools or clothing required.

Knauf Insulation offers Earthwool® glasswool insulation in a wide range of sizes and R-values.  Earthwool® glasswool insulation can be used for cavity walls, floors, ceilings, attics, basements and crawlspaces.  It is highly resilient, recovering quickly to full thickness.  It also greatly reduces the transmission of noise in the home.

GreenStuf Underfloor


In new builds or retrofits.  Used in timber framed construction.

R Value: 

R1.5 - 1.8 - thermally tested by BRANZ


Easy, no special tools or clothing required.


  • R1.5 (450) (500) (600) Widths 100mm 20m² Bales

  • R1.8 (450) (500) (600) Widths 100mm 17.5m² Bales

Insulating your floor with GreenStuf will help maintain a more even temperature in your home all year round and help to reduce your home heating costs.

50 Year durability guarantee

Non-irritant and non-allergenic

03-381 1111

476 St Asaph St, Phillipstown, Christchurch 8011, New Zealand

©2018 by Home Insulation Christchurch