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ecoinsulation Thermal and Acoustic Wall Insulation

ecoinsulation Thermal and Acoustic Wall insulation with DriTherm technology is made using a silicone treatment that is added to the glasswool during manufacture to upgrade the moisture resistance of the insulation, and provide guaranteed water resistance for 50 years.

ecoinsulation Thermal and Acoustic Wall insulation is made using:

  • Up to 80% recycled glass
  • ECOSE Technology — binder with no added formaldehyde
  • TwinTech — dual forming technique for a smooth finish on both sides
Key Features
  • DriTherm technology — silicone treated glasswool for increased durability
  • TwinTech — smooth finish on both sides
  • High thermal performance — year round comfort
  • Excellent acoustical properties reduce sound transmission in the home when properly installed
  • Non-combustible
  • Saves energy - lower energy bills
  • No added formaldehyde
  • Soft to handle and install
  • 50 year warranty
  • Compression packed — more product per pack
  • Odourless
Green Tag Certified
Green Tag Certified
Recycled Content (Pre-Consumer)
Pre-Consumer Recycled Content
Scope of Use
  • ecoinsulation glasswool has been appraised by BRANZ as a thermal insulation material for framed or part-framed walls of domestic and commercial buildings. 
  • The insulation is pre-cut to suit a wide range of thermal insulation requirements and framing set-outs
  • Comes in a range of R-Values — see Product Schedule


Limitations on Use
  • ecoinsulation glasswool must be stored under cover and in dry conditions
  • Heavy objects must not be stacked on the packs. The packs must be stored in an orientation that avoids excessive compression of the product.

See BRANZ Appraisal 1049 for full information.

Statement of Building Code Compliance
  • AS/NZS 4859.1 Materials used in the Thermal Insulation of Buildings

In the opinion of BRANZ, ecoinsulation glasswool if designed, used, installed and maintained in accordance with the statements and conditions of this Appraisal, will meet or contribute to
meeting the following provisions of the NZBC:

  • Clause B2 DURABILITY: Performance B2.3.1(a) not less than 50 years, and B2.3.2. ecoinsulation glasswool insulation products will meet these requirements.
  • Clause C3 PROTECTION FROM FIRE: Performance C3.7(a). ecoinsulation glasswool insulation products are not combustible building materials and will contribute to meeting this requirement
  • Clause E3 INTERNAL MOISTURE: Performance E3.3.1. ecoinsulation glasswool insulation products will contribute to meeting this requirement
  • Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. ecoinsulation glasswool insulation products do not present a health hazard to people
  • Clause H1 ENERGY EFFICIENCY: Performance H1.3.1(a) and H1.3.2E. ecoinsulation glasswool insulation products will contribute to meeting these requirements

See BRANZ Appraisal 1049 for full information.

In-Service History

ecoinsulation glasswool insulation has been designed utilising world-class, proven technology from Knauf Insulation.

Other Performance Attributes
  • Water Vapour Absorption: Less than 5% by weight
  • Corrosion Resistance: No greater than sterile cotton
  • Microbial Growth: Does not support microbial growth
  • Fire Hazard Properties (AS/NZS 1530.3):
    • Ignitability: 0
    • Spread of flame: 0
    • Heat Evolved: 0
    • Smoke Developed: 0-1
  • Combustibility (AS 1530.1): Non-combustible
  • Thermal Conductivity: AS/NZS 4859.1
  • Eurofins: Indoor Air Comfort Gold Standard
  • GreenTag Level A

The formulation used for ecoinsulation glasswool insulation has been independently assessed to meet the requirements of the stringent Note Q standard (and is therefore consistent with the highest Australian and New Zealand industry standards), and also assessed by Knauf Insulation against the criteria of the Australian Safety and Compensation Council ASCC Approved Criteria for Classifying Hazardous Substances [NOHSC: 1008 3rd Edition]. As a result of this assessment, ecoinsulation glasswool insulation is not classified as hazardous according to the NOHSC criteria.

Acoustic Performance

  • Acoustic results are dependant upon the wall system in which the insulation is fitted
  • ecoinsulation glasswool can provide design advice and testing, via Marshall Day. Please contact ecoinsulation glasswool 


  • ecoinsulation glasswool offer a 50 year warranty on wall and ceiling products
B2 Durability compliant
C Protection from Fire compliant
Protection from Fire
E3 Internal Moisture compliant
Internal Moisture
F2 Hazardous Building Materials compliant
Hazardous Building Materials
H1 Energy Efficiency compliant
Energy Efficiency
BRANZ Appraised
BRANZ Appraised
Data Sheet: Thermal and Acoustic Wall
BRANZ Appraisal 1049

1049 [2019]

Certifire Certification


CodeMark Certificate
Declare Certificate: Red List Free
EUCEB Certification
Eurofins Certificate: Indoor Air Comfort Gold


GreenTag Certificate: Level A


Installation Instructions: Wall Batts
Installation Instructions: Wall Batts R1.3

Knauf Insulation provides a sustainable and high performance glasswool insulation with both thermal and acoustic properties for residential and commercial applications.

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