Kingspan K108 Kooltherm Cavity Insulation Board | 1200mm x 450mm

KingspanSKU: BM00149
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Sale price£132.28 

inc VAT

Pay in 3 prices shown are an example only. Total calculated at checkout.

Delivery within 5 - 7 working days

Free Delivery On Orders
Over £499.95 Ex-Vat

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Kooltherm K108 Cavity Board stands at the forefront of partial fill cavity wall insulation, delivering unparalleled performance with its premium, lower-lambda rigid thermoset phenolic insulation.

Its exceptional thermal conductivity of just 0.019 W/mK enables buildings to achieve optimal U-values with a notably thinner profile, effectively maximising usable internal floor space and allowing more natural daylight to permeate the interior.

Features and Benefits

  • Ultra-Thin Insulation Solution: Kooltherm K108 is among the most slender options available for partial fill cavity walls, facilitating thinner wall constructions that enhance the aesthetic and functional quality of buildings by allowing more natural light and increasing usable space.

  • Moisture Resistance: With a clear cavity that resists moisture penetration, Kooltherm K108 ensures long-term durability and maintains insulation performance, contributing to the overall health of the building environment.

  • Enhanced Thermal Resistance: The low emissivity foil facings on both sides of Kooltherm K108 significantly increase the thermal resistance of the cavity, providing superior insulation performance that surpasses that of many alternative products.

Application Areas

Kooltherm K108 is specifically engineered for partial fill cavity wall insulation applications. It's an excellent choice for new construction and retrofit projects alike, where improving thermal efficiency without sacrificing space or light is essential.

Technical Specifications

  • Dimensions: L1200 x W450 x D90mm
  • Thermal Conductivity: 0.019 W/mK
  • Thermal Resistance: 5.55 m²K/W
  • Facings: Low emissivity composite foil, autohesively bonded to the insulation core
  • Certifications: BBA Certified
  • Material: Premium performance, lower-lambda rigid thermoset phenolic insulation
  • Edging: Square

Kooltherm K108 Cavity Board redefines the standards for partial fill cavity wall insulation with its advanced features and superior performance. It offers a sustainable, effective solution for architects, builders, and homeowners aiming to enhance the energy efficiency of their buildings while maximising architectural flexibility and interior comfort.


Kingspan Kooltherm K108 Brochure

Order Value Delivery Charge
Up to £200.00 ex-vat £75.00 ex-vat
£200.00 - £499.95 ex-vat £55.00 ex-vat
Above £499.95 ex-vat Free Delivery


 Jablite Products Delivery Charge
Order Value Delivery Charge
£80.00 - £500.00 ex vat £59.95
Above £500+ ex vat Free Delivery


Weekend Delivery
Available upon request


Parcel Rates
Delivery charge may vary depending on quantity and volume of your order.
Pricing will be calculated during checkout.


Local Delivery Charge
Within 35 miles of Postcode S63 9BL - Up to £500.00 ex-vat
Delivery Charge £35.00 ex-vat
Please contact us to arrange collections
Tel: 03300 55 32 02 | Email:


  • Delivery charges will automatically be calculated within the checkout process.
  • Orders are only processed for delivery between 8.30am - 5.00pm Monday to Friday excluding bank holidays.
  • Moffett offload will be used for large bulky deliveries and only when agreed with you.
  • Please advise of any access issues on ordering.
  • Delivery is Kerbside only.
  • In the unlikely event that your delivery is not correct or damaged please notify us immediately and mark any issues on the delivery slip.


    Where We Deliver

    Delivery Areas

    We have a fleet of FORS delivery vehicles all with Moffett mechanical off loads that deliver nationwide. Sometimes we may use 3rd party carriers for smaller orders.


      Product Delivery Times

      • The vast majority of our orders are dispatched within 3 working days, this can however be up to 5 working days, please contact us if you require something urgent.
      • Speciality items may take up to 5-7 working days.
      • We will contact you with in 24/48hrs of your order been placed to confirm delivery times and dates.

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