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CosyWall Technical Specifications

CosyWall Technical Information

CosyWall™ insulation (CWI) is a full external wall cavity insulation system (EWCIS) for providing thermal insulation to wall cavities lined on both sides. The system includes an assessment of building suitability, licensed installation of water-resistant glass wool insulation and durable external cladding repair.

The insulation is manufactured in selected plants by melting and spinning a blend of inert, natural minerals. It is non-combustible, water-resistant, breathable, won’t settle or shrink and has a trouble-free history of insulating New Zealand external wall cavities since 2002. CosyWall™ is packed in plastic weather tight

Filling Internal Wall Insulation

Product Technical Information

CosyWall™ provides effective thermal insulation for external timber-framed wall cavities with suitably fixed internal linings. It can be installed in any home, and it is best suited to homes built before 1990, when walls were often left uninsulated. It is suitable for the following external claddings.

TABLE ONE – THERMAL RESISTANCE COSYWALL® CAVITY WALLS
For a total R-value of:Requires material R-value of:Min thickness (mm)
2.2 (1)
2.8

90

2.6 (2)
2.9

105

3.3 (3)
3.9

138

1) Weatherboard >1950 with nogs. Deduct R0.2 if Sheet cladding.
2) Weatherboard <1950 510c/c, no horizontal nogs
3) Brick with 40mm cavity, no building paper

Total R-values assume 18% thermal bridging as per H1/AS1 & may alter in walls with more or less framing timber.