Kooltherm K12 Framing Board

Kingspan Kooltherm K12 Framing Board image

Premium performance framing insulation

Kingspan Kooltherm K12 Framing Board is a premium performance insulation that provides a thermal conductivity between 0.020 W/mK and 0.023 W/mK.

With a fibre-free rigid thermoset phenolic core and a low emissivity foil outer face, Kingspan Kooltherm K12 delivers superior thermal performance with easy to handle boards, resulting in an efficient installation process.

Manufactured with a blowing agent that has zero ODP and low GWP, it is used to insulate timber and steel framing systems.

Product brochure

Our product brochures include U-value tables, handling advice and installation guidance.

Kooltherm K12 Framing Board

Technical & downloads

Thermal Conductivity 0.023 W/mK (insulant thickness 15−24 mm)
0.021 W/mK (insulant thickness 25–44 mm)
0.020 W/mK (insulant thickness ≥ 45 mm)
Euroclass F
Facings Low emissivity composite foil
Core Premium performance rigid thermoset phenolic insulation 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 metres
Weight Approx 3.86 kg/m2 at a thickness of 100 mm
There are restrictions placed upon this product which vary dependant on building type, height, construction and location. For guidance regarding the routes to compliance for meeting the fire safety requirements of the Building Regulations / Standards, refer to the relevant Technical Bulletins and links to Government websites here.


Net Zero Energy / Renewable Energy Kingspan Kooltherm K12 is manufactured in our Pembridge, Herefordshire facility. By the end of 2020, 100% of the non-renewable operational energy used in manufacturing processes in this site will be matched through the use of renewable energy and the purchase of renewable energy certificates (to offset any remaining non-renewable energy use). Visit our Net Zero Energy area to learn more.
Net Zero Carbon manufacturing Our groupwide aim is to achieve net zero carbon (CO2e) emissions (scope 1 & 2) from our manufacturing activities by the end of 2030. For more info, visit Planet Passionate.
Waste to Landfill At Pembridge, we currently send 7.9% of our manufacturing waste to landfill. We are working to achieve total landfill diversion in the next year.
Our Planet Passionate goal is to send zero waste to landfill by 2030.
Responsible sourcing This product is certified 'Excellent' to BES 6001 (Framework Standard for the Responsible Sourcing of Construction Products) for our Pembridge manufacturing site. 
Kingspan Kooltherm K12 is manufactured in one site and offers the following sustainability performance.

Responsible sourcing

Kingspan Kooltherm K12 produced at Kingspan Insulation’s Pembridge, Herefordshire manufacturing facility is certified to BES 6001 (Framework Standard for the Responsible Sourcing of Construction Products) ‘Excellent’.
Planet Passionate
Through our new Planet Passionate 10-year groupwide sustainability programme, we aim to make significant advances in the sustainability of our business and of our products.

Case studies

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