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Kingspan Technical Insulation - Kooltherm® HVAC & Building Services Pipe Insulation

Thermal Performance - Moisture Resistance - Pipe Insulation - Kooltherm®

Thermal Performance

With a robust declared lambda of 0.025 W/mK at 10°C to EN 14314, based on the time averaged value over 25 years, Kooltherm® Pipe Insulation is one of the most thermally efficient insulation material commonly used. A low thermal conductivity allows specified thermal performance standards to be achieved with thinner insulation. The superior thermal performance of Kooltherm® Pipe Insulation derives mainly from its closed cell properties. Its closed cell structure has been optimised to resist heat transfer.

The closed cells have a small solid to void volume ratio which are small and uniform in size, and their construction is very fine with extremely thin walls and minimum point contact (struts). They are filled with a thermally efficient CFC/HCFC-free blowing agent with zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP). As a result of its closed cell structure, Kooltherm® Pipe Insulation is unaffected by air infiltration – problems that can be experienced with mineral fibre and which can reduce thermal performance.

Moisture Resistance

Kooltherm® Pipe Insulation has a 90% (or greater) closed cell structure.

The risk of moisture absorption into the insulation is effectively eliminated as the factory-applied aluminium foil facing to Kooltherm® Pipe Insulation System products provides a high performance vapour barrier jacket.


The European fire classification for Kooltherm® Pipe Insulation of BL-s1, d0 is the highest possible classification for phenolic foam insulation.

The subscript L indicates that Kooltherm® has been correctly tested as pipe insulation as placed on the market in accordance with the requirements of CE Marking and BS EN 14314.

The excellent fire and smoke performance characteristics of Kooltherm® Pipe Insulation clearly demonstrate the suitability for the designated application.

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Kingspan Technical
Insulation Ltd
Glossop Brook Road
SK13 8GP

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Tel: 01457 890400

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