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Kingspan Kooltherm K5 Phenolic External Wall Insulation Board 1200 X 600 X 20mm - Pack of 25 Sheets

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£208.92 Incl. VAT
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Product Description

Kingspan Kooltherm K5 20mm External Wall Board is a premium performance insulation, with a fibre-free rigid thermoset phenolic core, which is used for external insulation on masonry walls behind traditional and lightweight polymer modified renders and dry cladding systems.

Kingspan's Kooltherm K5 External Wall Board is faced on both sides with a glass tissue based facing, autohesively bonded to the insulation core during manufacture.

Features & Benefits

  • Suitable for use behind traditional and lightweight polymer modified renders
  • Unaffected by air infiltration
  • Resistant to the passage of water vapour
  • Easy to handle
  • Easy to install
  • Ideal for new build and refurbishment
  • Non-deleterious material
  • Manufactured with a blowing agent that has zero ODP and low GWP

Product Specification

Thickness: 20mm

Length: 1200mm

Width: 600mm

Board Coverage: 0.72m2

Pack Quantity: 25

Pack Coverage: 18m2

Thermal Conductivity (as low as): 0.020 W.mK

Please Note:

This item is non-returnable due to being Special Order, Made to Measure or for hygiene reasons. Your statutory rights are not affected.

Product Documents


WIDTH 600mm LENGTH 1200mm THICKNESS 20mm


Thermal Conductivity 0.023 W/mK Material Phenolic Foam Product Type Board Facing Mineral Glass Coated
Edging Square Edge

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Questions & Answers


Dear Insulation Superstore Is there any chance you can sell a single sheet of Kooltherm 20mm K5? Or sell offcuts? It's only for a small renovation project, I don't need 25 boards. Thanks.


I am afraid that the Kooltherm range is only available in pack quantities, and they are not able to be split down, nor do they sell offcuts.


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Kingspan Kooltherm K5 Phenolic External Wall Insulation Board 1200 X 600 X 20mm - Pack of 25 Sheets

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