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InteriorInterior
Chatterblock Acoustic Wool Interior Wall and Midfloor Insulation
Description

Chatterblock® Acoustic wool insulation provides thermal and acoustic insulation for interior walls. It provides a strong sound barrier between walls, thanks to wool’s remarkable sound-dampening qualities, as well as excellent thermal insulator properties.

The semi-rigid construction of Chatterblock is specifically formulated with a high density of at least 18kg/m³, giving a high flow resistance suitable for a wide range of specialised sound control.

Chatterblock® is locally manufactured from sheep wool from Canterbury farms and is safe to handle and easy to friction fit install, providing a solution that meets modern acoustic and environmental compliance standards.

  R-value Thickness Centres Density
Chatterblock 1.4 R1.4 60mm 600mm 46.7kg/m³
Chatterblock 2.2 R2.2 90mm 600mm 21.8kg/m³
Chatterblock 3.2 R3.2 140mm 600mm 18.2kg/m³
see Data Sheet for full information   
Key Features
  • Excellent sound barrier — This acoustic insulation provides a strong sound barrier for walls and midfloors, thanks to wool’s remarkable sound-dampening qualities and high density of at least 18kg/m³
  • Thermal performance — Wool is an excellent thermal insulator
  • Moisture control — Terra Lana insulation is hygroscopic (can absorb and release moisture vapour) so it can help to mitigate condensation risks and mould formation within buildings whilst still maintaining thermal performance.
  • Customisation — All widths and lengths can be customised to suit the specific framing requirements of each project.
  • 50 year warranty — the combination of New Zealand wool and thermal bonding technology using polyester creates a robust, structurally stable product that will never slump nor lose its loft over the lifetime of the building. Meets the durability requirements of the NZBC.
  • Zero waste — made from recycled offcuts from the manufacturing process and offcuts we receive back from the installation process. The product is 100% recyclable on return to the factory in Christchurch
  • Safe — Terra Lana is safe to touch and can be handled without protective clothing, and has negligible VOC emissions
  • Declare Red List Free — certified toxin free
Declare LBC Red List Free
Declare LBC Red List Free
NZ Made
NZ Made
Recyclable Content (Post-Consumer)
Post-Consumer Recyclable Content
Recycled Content (Pre-Consumer)
Pre-Consumer Recycled Content
Scope of Use
  • Acoustic and thermal insulation for interior walls 
  • Residential and commercial buildings
  • Intertenancy walls and floors including GIB Systems 
  • Internal walls & midfloors between living areas and bedrooms
  • Can also perform as a sound absorber behind perforated ceiling systems
  • Designed for interior 90mm wall studs

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Statement of Building Code Compliance

In the opinion of BRANZ, Terra Lana Wool Insulation, if designed, used, installed and maintained in accordance with the statements and conditions of Appraisal 682, 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 B2.3.1 (b) 15 years. Terra Lana Wool Insulation meets these requirements
  • Clause E3 INTERNAL MOISTURE: Performance E3.3.1. Terra Lana Wool Insulation contributes to meeting this requirement.
  • Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Terra Lana Wool Insulation meets this requirement.
  • Clause H1 ENERGY EFFICIENCY: Performance H1.3.1 (a) and H1.3.2 E. Terra Lana Wool Insulation contributes to meeting these requirements.

For Clause G6 Airborne and Impact Sound: see STC ratings.

 

Other Performance Attributes
  • 50 year warranty — the combination of New Zealand wool and thermal bonding technology using polyester creates a robust, structurally stable product that will never slump nor lose its loft over the lifetime of the building. Meets the durability requirements of the NZBC.
  • Zero waste — made from recycled offcuts from the manufacturing process and offcuts we receive back from the installation process. The product is 100% recyclable on return to the factory in Christchurch
  • Declare Red List Free — certified toxin free
BRANZ Appraised
BRANZ Appraised
Documents
Data Sheet: Chatterblock
GIB System STC Product Specifications
BRANZ Appraisal 682: Terra Lana Wool Insulation

682 [2022]

Marshall Day Acoustics — Sound Insulation Report

2020

Wool Insulation Installation Guides
CAD/PDF Details
Terra Lana Insulation: Typical Details (Full Set)

TL

Terra Lana Products is located in Christchurch and manufactures an extensive range of innovative wool insulation, acoustic control and landscaping products.

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