Further technical information such as composition and manufacture, size and weight, performance and sitework...

Composition and manufacture

The Kingspan KoolDuct® System comprises up to 3m long ductwork sections fabricated from CFC/HCFC-free rigid phenolic insulation panels with aluminium surfaces available in Silver or Black.

Size and weight

Panel size: 2,950mm x 1,200mm.
Panel thicknesses: 22mm and 33mm. Manufactured to comply with BS 5422:2001 and the TIMSA Guide.


The panels achieve a minimum compressive strength of 200kPa at 10% compression.

Effect of fire

The resistance to burning and spread of flame of Kingspan KoolDuct® panels is far superior to that of any other cellular plastic insulation material. There is an almost complete absence of smoke when subjected to a flame source. The panels achieve a Class 0/Low Risk rating to the Building Regulations and Building Standards.

Moisture properties

Kingspan KoolDuct® rigid phenolic insulation panels have a >90% closed cell structure which makes them non-wicking and highly resistant to moisture penetration.

Thermal properties

The thermal conductivity of Kingspan KoolDuct® rigid phenolic insulation panels is 0.021W/m·K at 10ºC (mean), the lowest of any commonly available insulation material. This allows the thinnest possible insulation to achieve the specified thermal performance.


The Kingspan KoolDuct® System is fabricated and installed only by specially trained fabricators and installers who have completed a comprehensive training course to ensure uniform excellence. A Technical Advisory Service is also available from the Kingspan Insulation Technical Service Department.

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Kingspan Insulation

Kingspan Insulation

Insulation boards for low energy low carbon buildings. Optimum, premium and high performance rigid insulation products for building fabric applications, including roofs, walls and floors.

Our range of insulation boards includes Kooltherm,...
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T(01544) 388 601
 01544 387 382 Tech Dept.
F(01544) 388 888
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 Pembridge, Leominster, Herefordshire, HR6 9LA

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