High performance insulation for flat roofs and has a thermal conductivity of 0.022 W/m·K.

What are the benefits of TT46 Tapered Roof Insulation?  
  • Designed to enhance water drainage for flat roofs waterproofed with mechanically fixed single-ply waterproofing
  • Non-fibrous product, is insulation and drainage in one.
  • Practical alternative to screeding, structural falls or firrings.
  • Load bearing implications for an existing structure can be minimal
  • Resistant to the passage of water vapour
  • Ideal for new build and refurbishment
  • Compatible with most waterproofing and green roof systems

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Thermataper Systems

Product information

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Product Literature


Thermal conductivity 0.022 W/m.K
Facings Composite foil
Core High performance rigid thermoset polyisocyanurate (PIR) insulant manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).
Board size 1.2 x 2.4 m
Manufactured rate of fail 1:60, 1:80

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Kingspan Insulation Ltd.

Bree Industrial Estate


Co. Monaghan

A75 X966

Tel: +353 (0) 42 979 5000