Kooltherm Duct Insulation

Kooltherm Duct Corner UK 09-13

Premium performance duct insulation

Kingspan Kooltherm Duct Insulation is a premium performance thermal insulation designed for use on rectangular, circular and flat oval ductwork in HVAC / building services applications. It can be used to insulate ductwork, plenums and associated equipment, installed both indoors and outdoors.

Product brochure

Our brochure includes technical data and thickness tables

Kooltherm Duct Insulation brochure

Product information

Product details
Insulated duct support inserts
Useful links
Kingspan Kooltherm Duct Insulation comprises a fibrefree rigid thermoset phenolic insulation core, faced on one side (external face) with an aluminium vapour barrier foil, and faced on the other side (internal face) with a glass tissue based facing. Both facings are autohesively bonded to the insulation core during manufacture.

Kingspan Kooltherm Duct Insulation has a 90% (or greater) closed cell structure and a compressive strength that typically exceeds 100 kPa at 10% compression. Solutions are available to accommodate the surface curvature of circular and flat oval ductwork with an outside diameter (O.D.) of 80 mm or greater.
Thermal Conductivity 0.022 W/mK (at 10°C, time averaged value over 25 years)
Euroclass C
Facings Faced on one side (external face) with an aluminium vapour barrier foil and faced on the other side (internal face) with a glass tissue based facing
Core Premium performance rigid thermoset phenolic insulation core manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP)
Board Size 1.2 x 0.6 metres
Weight Approx. 2.0 kg/m2 at a thickness of 50 mm
FM Approval Factory Mutual Research Approval Standard - Pipe Insulation Class Number 4924 when manufactured and installed in accordance with the conditions defined by the approval.
Insulated Duct Support Inserts 1
Load-bearing insulation inserts can be fabricated on site from standard Kingspan Kooltherm Duct Insulation boards to suit the whole range of duct dimensions and insulation thicknesses. They can withstand the loads imposed by HVAC / building services ductwork at locations where ductwork
supports and hangers are installed.

Kingspan Kooltherm Flat Insulated Duct Support Inserts are flat rectangular strips of Kingspan Kooltherm Duct Insulation. They are used with rectangular and flat oval ductwork.

Kingspan Kooltherm Circular Insulated Duct Support Inserts are curved strips of Kingspan Kooltherm  Duct Insulation or Kingspan Kooltherm Pipe Insulation.They can not be used to support the compressive loads imposed by pipework carrying water or other liquids and should not be used in such applications.

HVAC Ducting Installation Guide

Kooltherm Duct Insulation DoP

Ducting CE Marking Technical Bulletin

Ductwork Commissioning Technical Bulletin

Kooltherm Duct Insulation brochure

HVAC Ducting Installation Guide

Planet Passionate
Through our new Planet Passionate 10-year groupwide sustainability programme, we aim to make significant advances in the sustainability of our business and of our product

Case Studies

Related products

Kingspan Technical Insulation

For queries relating to pipe and duct insulation products

Glossop Brook Road



SK13 8GP

General enquiries: 01457 890400

Technical advice: 0808 168 7363