Kingspan Kooltherm K108 Cavity Board (All Sizes) 1200mm x 450mm All Insulation
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Kingspan Kooltherm K108 Cavity Board (All Sizes) 1200mm x 450mm

SKU: K108/50

Est Delivery between and .

Order now and get free delivery on all Kingspan orders over £300 ex vat.

The price shown is the price per pack. These products are sold in pack qtys only

Thickness Boards Per Pack Coverage
50mm 10 5.4m2
60mm 8 4.32m2
75mm 6 3.24m2
100mm 5 2.7m2


Elevate your construction projects with Kingspan Kooltherm K108 Cavity Board, now in all sizes at With a premium rigid phenolic core, this insulation ensures top-tier thermal efficiency in partially filled cavity walls. Certified to ISO standards, it boasts a low emissivity foil facing on both sides, enhancing thermal resistance. The reflective foil not only improves insulation but also aids energy efficiency. Featuring a thermal conductivity of 0.019 W/mK, it's your go-to choice for superior thermal performance. Upgrade to Kingspan Kooltherm K108 for reliable, environmentally conscious insulation, available in various sizes for your convenience.

Key Features

  • Premium Performance Insulation
  • Certified Quality
  • Versatile Application
  • Low Emissivity Composite Foil Facing
  • Reflective Surface for Energy Efficiency
  • Rigid Construction
  • Convenient Sizes
  • Blowing Agent Technology
  • Easy Installation
  • Ultra-Low Thermal Conductivity

Kingspan Kooltherm® K108 Cavity Board is manufactured to the highest standards under a management system certified to ISO 9001: 2015 (Quality Management Systems. Requirements), ISO 14001: 2015 (Environmental Management Systems. Requirements), ISO 45001: 2018 (Occupational Health & Safety Management Systems. Requirements with guidance for use) and ISO 50001: 2018 (Energy Management Systems. Requirements with guidance for use).

The Facings:

Kingspan Kooltherm® K108 Cavity Board is faced on both sides with a low emissivity composite foil, autohesively bonded to the insulation core during manufacture. This reflective, low emissivity surface improves the thermal resistance of any unventilated cavity adjacent to the board.

The Core:

The core of Kingspan Kooltherm® K108 Cavity Board is a premium performance rigid thermoset fibre-free phenolic insulant manufactured with a blowing agent.

Other Related Products

Kingspan Thermawall TW50 Cavity Wall BoardIdeal for cavity wall applications, this board offers excellent thermal performance and is available in a range of sizes.

Kingspan Kooltherm K103 FloorboardElevate your flooring insulation with this high-performance board, ensuring both efficiency and durability.

Kingspan Kooltherm K110 Soffit BoardSpecifically designed for insulating structural ceilings, this board provides reliable thermal protection.

Kingspan Kooltherm K112 Framing BoardEnsure optimal insulation for timber and steel framing systems with this versatile and efficient board.

Kingspan Kooltherm K5Explore this premium insulation board, suitable for a variety of applications, offering high thermal performance.

Celotex TB4000 Thermal Bridging BoardAddress thermal bridging concerns effectively with this reliable and easy-to-install insulation board.


Frequently Asked Questions

What is the core material of the Kingspan K108 Cavity Board? The K108 Cavity Board features a rigid thermoset fibre-free phenolic core, ensuring premium thermal efficiency.

What certifications does the product hold? The K108 Cavity Board is manufactured to the highest standards and holds certifications for ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and ISO 50001:2018.

How does the low emissivity composite foil facing benefit insulation? The board is faced on both sides with a low emissivity composite foil, enhancing thermal resistance and contributing to energy efficiency.

In what type of walls can I use the K108 Cavity Board? This product is designed for use in partially filled cavity walls, making it versatile for various construction projects.

What sizes are available, and how do I choose the right one for my project? The K108 Cavity Board comes in various sizes. To choose the right one, consider the dimensions of your cavity and the specific requirements of your project.

Is the product easy to install? Yes, the K108 Cavity Board is designed for easy installation, providing convenience for construction professionals.

How does the reflective foil surface contribute to energy efficiency? The reflective foil surface improves the thermal resistance of any unventilated cavity adjacent to the board, enhancing overall energy efficiency.

Can the K108 Cavity Board be used in conjunction with other insulation products? Yes, it can. However, it's essential to follow the recommended guidelines and consult with a professional to ensure compatibility and optimal performance.

What is the thermal conductivity of the K108 Cavity Board? The board boasts a low thermal conductivity of 0.019 W/mK, ensuring ultra-efficient thermal performance.


Thermal Conductivity: 0.019 W/mK

Length 1200mm
Width 450mm
Thermal Conductivity 0.019 W/mK
Brand Kingspan
Material Type Phenolic

Est Delivery between and .

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