Earthwool External Wall Batts

External wall insulation battsEarthwool® External wall batts are a new generation of super-soft, sustainable glasswool for the thermal and acoustic insulation of external walls. Although the product is primarily designed for use in external walls it can also be used for internal walls to reduce sound transmission from room to room. Earthwool External wall batts are available in thicknesses to suit 75mm, 90mm and 140mm timber frames and also come in increased densities and lower thermal conductivity to maximise energy savings, High Density (HD) and Super High Density (SHD) External wall batts.

Advanced compression packaging reduces handling time and the storage space required on site.

Earthwool External wall batts are available at your local Bunnings Warehouse.

If you're installing Earthwool yourself then don't forget to check out our DIY Safety Instructions and Precautions before you start. 

Application
Insulation battsEarthwool External wall batts provide a cost-effective thermal and acoustic barrier for energy-efficient construction. The consistent quality, low dust, and clean-cutting resilient glasswool makes fabrication easy and installation fast.

Earthwool External wall batts can be used in timber and metal frame applications in residential structures. Knauf Insulation offers Earthwool External wall batts in a wide range of R-Values to provide high thermal performance and comfort - cool in summer and warm in winter. They greatly reduce the transmission of noise in the home and are highly resilient, recovering quickly to full thickness.

Proven Performance

  • Preferred by professional installers concerned with quality, appearance and productivity.
  • Excellent acoustical properties reduce sound transmission in the home when properly installed in walls, ceiling and floor systems.

Durability

  • Earthwool External Wall Batts are odourless, rot proof, non-hygroscopic, do not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Superior Handling

  • Highly resilient insulation recovers quickly to full thickness for a snug fit and superior finished aesthetics. 
  • Consistent quality materials feel good, cut easily and install fast. 
  • Low dust for easier handling and increased productivity.

Convenient Packaging, Easier Handling

  • Earthwool External Wall Batts are packaged in a strong, white poly bag that offers excellent protection from abuse, dust and moisture. 
  • Earthwool External Wall Batts packages feature easy to follow installation instructions. 
  • Master bag batt units (containing multiple packs) ensure reduced handling costs with improved compression – more square metres per bag, more square metres per truck load, fewer trips to the job site and less warehouse space for storage.

Superior Service and Support

  • Knauf Insulation is totally focused on providing first class customer service, producing high quality product and ‘on time in full’ deliveries. 
  • Knauf Insulation recognises the need to establish, develop and support a professional network of distributors and re-sellers in order to service a growing insulation market. 
  • Knauf Insulation is committed to providing a comprehensive range of relevant literature and web-based technical information to support specifiers and consumers.

Earthwool External Timber Frame Wall Batts

Material

Code

 E-Code 

 R-Value

(m²K/W)

Thickness 

(mm)

 Width 

(mm)

 Length

(mm)

Area Per Pack 

(m²)

$/m²
2437521 E2253 1.5 75 430 1160 20.95 $4.15
2437523 E2255 1.5 75 580 1160 28.26 $4.15
2437525 E2259 2.0 90 430 1160 15.96 $5.38
2437528 E2261 2.0 90 580 1160 21.53 $5.38
244462 E3591 2.0 HD 75 430 1160 9.98 $7.49
2438626 E3592 2.0 HD 75 580 1160 13.46 $7.49
2437532 E4332 2.5 HD 90 430 1160 6.98 $10.45
2437533 E4333 2.5 HD 90 580 1160 9.42 $10.45
256736 E4473 2.7 SHD 90 430 1160 4.99 $15.48
251511 E4335 2.7 SHD 90 580 1160 6.73 $15.48

HD = High Density, SHD = Super High Density.
Pricing is GST Exclusive.

Calculate how many packs of insulation you will need here.

 

Earthwool is available at your local Bunnings Warehouse

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Earthwool External Metal Frame Wall Batts

Material Code  E-Code

 R-Value 

(m²K/W)

Thickness 

(mm)

Width 

(mm)

Length 

(mm)

Area per pack

(m²)

$/m²

2437522

E2254

1.5 75 450 1200 22.68 $4.15
2437524 E2257 1.5 75 600 1200 30.24 $4.15
2437526 E2260 2.0 90 450 1200 17.28 $5.38
2437529 E2262 2.0 90 600 1200 23.04 $5.38
2438628 E3594 2.0 HD 75 450 1200 10.80 $7.49
2438629 E3595 2.0 HD 75 600 1200 14.40 $7.49

HD = High Density.
Pricing is GST Exclusive.

Earthwool is available at your local Bunnings WarehouseBRANZ Logo Sm                                                         

Specification Compliance
• AS/NZS 4859.1: 2002 Materials used in the Thermal Insulation of Buildings and comply with the Building Code of Australia (BCA) requirements.

Thermal Conductivity
• ASTM C 518
Thermal Resistance
• ASTM C 653

Specification Guide
The wall insulation shall be Earthwool External Wall batts R*, *mm thick, BRANZ appraised to meet the provisions of the BCA. The product will be non-combustible, CFC/HCFC free, zero ODP and GWP, Global GreenTag™ Level A certified, glasswool insulation with high post-consumer recycled glass content and with ECOSE® Technology. It will be manufactured under Quality Assurance Standards ISO 9001:2008 and ISO 14001:2004 by Knauf Insulation and shall be installed in accordance with the instructions issued by them.

*architect to insert details of products used. 

Bio-solubility
The formulation used for Earthwool 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, Earthwool insulation is not classified as hazardous according to the NOHSC criteria. 

Technical Data
Water Vapour Absorption (ASTM C 1104) 
• Less than 5% by weight. 
Corrosion Resistance (ASTM C 665) 
• No greater than sterile cotton. 
Microbial Growth (ASTM C 1338) 
• Does not support microbial growth. 
Fire Resistance (ASTM E 136) 
• Non-combustible. 

BRANZ Appraisal

BRANZ Appraisal

GreenTag Level A Certification

GreenTag Certification

Earthwool MSDS

Specification Guide
The ceiling insulation shall be Earthwool External Wall batts R*, *mm thick, BRANZ appraised to meet the provisions of the BCA. The product will be non-combustible, CFC/HCFC free, zero ODP and GWP, Global GreenTag™ Level A certified, glasswool insulation with high post-consumer recycled glass content and with ECOSE® Technology. It will be manufactured under Quality Assurance Standards ISO 9001:2008 and ISO 14001:2004 by Knauf Insulation and shall be installed in accordance with the instructions issued by them.

*architect to insert details of products used. 

Wall Batt Datasheet

Wall Batts Datasheet

Wall Batt Installation Guide

Wall Batts Install Instructions

Earthwool MSDS

Earthwool Warranty

Warranty

Earthwool Range Flyer

Video - How to install Earthwool wall insulation

DIY Wall Insulation