Kingspan Kooltherm K15 Rainscreen Board | 2400mm x 1200mm

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Kingspan Kooltherm K15 Rainscreen Board

Kingspan Kooltherm K15 is a leading-edge insulation board designed specifically for integration behind rainscreen façades. Achieving unparalleled thermal conductivity rates as low as 0.021 W/mK, Kooltherm K15 stands at the forefront of thermal insulation technology. Its advanced formulation ensures that it is one of the most thermally efficient products available on the market, offering substantial energy savings and environmental benefits.

Enhanced Building Performance

Kooltherm K15 not only improves your building's thermal efficiency but also contributes to a range of other significant advantages:

  • Ultra-Thin Insulation: Achieve your desired U-values with minimal insulation thickness, enabling sleeker, more aesthetically pleasing building designs.
  • Increased Daylight: Thinner walls mean larger windows and more natural light, enhancing the ambiance and comfort of interior spaces.
  • Ease of Installation: The lightweight nature of Kooltherm K15 boards simplifies handling and installation, promoting construction efficiency.
  • Value Enhancement: By maximising lettable space with its thin profile, Kooltherm K15 can significantly increase the lifetime value of your property.
  • Wellbeing Focus: With a fibre-free core, Kooltherm K15 ensures a safer, healthier environment for occupants.


Kooltherm K15 is the insulation choice for projects requiring superior performance behind rainscreen façades, offering flexibility and efficiency in modern construction practices.

Technical Specifications:

  • Material: High-quality rigid thermoset phenolic insulation, guaranteeing premium performance.
  • Thermal Conductivity: Offers excellent thermal resistance with values of 0.022 W/mK for thicknesses 25-44 mm and 0.021 W/mK for 45-150 mm.
  • Facings: Equipped with low emissivity composite foil facings on both sides, enhancing its thermal performance.
  • Dimensions: Available in standard sizes of 1200 x 2400mm to suit a variety of project needs.
  • Thickness Range: 25 - 150 mm, accommodating different insulation requirements.
  • Fire Performance: Achieves a Euroclass C-s2,d0 rating, ensuring compliance with safety standards.
  • Compressive Strength: 100 kPa, indicating robust durability and load-bearing capacity.

Kingspan Kooltherm K15's unmatched thermal efficiency, streamlined installation process, and positive impact on building aesthetics, value, and occupant wellbeing make it the optimal choice for homeowners, builders and architects.


Kingspan Kooltherm K15 Rainscreen Board 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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