Kingspan Kooltherm is widely used for a reason. It delivers strong thermal performance in a thinner build-up, with a thermal conductivity of 0.019 W/m.K. At the same time, it remains available at competitive wholesale prices. That makes Kingspan insulation one of the most thermally efficient insulation materials available to buy online.
It does not matter the application; you can be assured of reliability and quality if you choose Kingspan sheets. This makes it a favourite for trade and DIY customers across the UK.
Kingspan Kooltherm is a high-performance phenolic insulation board with a fibre-free core. The Kingspan boards are manufactured very thin, minimising the depth required for insulation, and are supplied in project-ready stock. These boards give you more floor and loft space and ceiling height.
Because they do not contain fibre in their cores, they are easy and safe to install and can be supplied at volume discounts for large projects. Combine that with the low thermal conductivity, and this makes it a highly efficient insulation solution.
Kooltherm boards are made using a fibre-free thermoset phenolic core and exceptionally low thermal conductivity (approx. 0.019 W/m·K), making them outstanding for thermal applications in a compact package and easy to order as phenolic products online.
Designed to perform for both solid concrete and suspended timber floors. The rigid phenolic core and glass tissue facings make it perfect for buildings with underfloor heating installed.
This board is designed for full-fill cavity walls with residual cavities of about 10mm. It comes with a vapour-open polypropylene fleece facing that keeps out moisture, delivering high performance with a thin profile.
Ideal for pitched roof applications with a thin profile, low-emissivity foil facing. It works perfectly for tiled or slated roofs as well as loft conversions.
This lightweight and easy-to-install board is ideal for partial-fill cavity walls. It has the same slender format as the rest of the series and is particularly favored for applications where the highest performance is critical.
As the name implies, this is designed for soffits (thin structural ceilings). The PLUS version adds impact resistance, enhancing durability and finish.
For framing applications, this foil-faced board design ensures a tight fit and superior insulation in stud-and-frame applications.
Combining dry lining, insulation, and vapor control, the K118 board is perfect for internal walls when external insulation isn’t feasible. It delivers efficient performance with minimal thickness.
Designed specifically for rainscreen cladding systems. It offers a high insulation value behind a ventilated facade, especially where thickness is a key consideration.
Made for external masonry walls and compatible with render systems, the K5 provides excellent thermal performance with a slim profile, making it ideal for retrofits. It is available with wholesale pricing options for large orders.
There are several uses of Kooltherm insulation. To find the best Kingspan Kooltherm type for you, figure out where you will use it, or speak to Insulation Wholesale Sales Team for quick quotes.
Here are some of the places where you can use Kingspan sheets and boards:
The fire performance characteristics of Kingspan Kooltherm are exceptional. Because it is a thermoset material, it hardens and chars when burned, producing minimal smoke. This is a favourable characteristic for users because the alternative involves thermoplastics like polystyrene, which melt, become soft, and emit thick black smoke when burned.
Whether you want to insulate your ceiling, walls, or floor, Kingspan boards should be at the top of your list.
You can buy Kingspan Kooltherm insulation online with bulk pricing, volume discounts, and quotes in minutes. Insulation Wholesale provides fast nationwide delivery, kerbside drop-off, and full VAT invoices for every order.
Buy Kingspan Kooltherm online from Insulation Wholesale, where we keep a wide range in stock. We offer different types of Kooltherm boards – from Kooltherm insulation for floors and roofs, to Kooltherm insulated plasterboard, and specialised Kooltherm Kingspan insulation panels. Explore our genuine K103, K107, K108, K112, and K118 panel range, and compare thicknesses, coverage, and pack sizes to get the most suitable board.
Exact Kingspan Kooltherm insulation prices vary based on: panel type, its thickness, and where you buy it. You are likely to spend £17–£50+VAT per m² for a standard Kooltherm insulation board. For more specialised Kingspan Kooltherm insulation panels, such as insulated plasterboard, the cost increases due to the extra finish and materials.
Yes. You can resize Kooltherm panels using a fine-tooth saw or a sharp insulation knife. Mark your line, score or saw along it, then snap or finish the cut. This method works with all Kingspan Kooltherm panels, general Kooltherm insulation, or any Kingspan insulation panels.
100mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
100mm Kingspan Kooltherm K107 Pitched Roof Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate pitched roofs and attic spaces, and has a thermal conductivity of just 0.019 W/m.K across all thicknesses.
100mm Kingspan Kooltherm K108 partial fill cavity wall board is a premium performance lower lambda insulation with a rigid thermoset fibre-free phenolic core. It is faced on both sides with a low emissivity composite foil facing and is used in partially filled cavity walls.
115mm Kingspan Kooltherm K106 Cavity Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core with a thermal conductivity of just 0.019 W/mK across all thicknesses.
120mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
120mm Kingspan Kooltherm K107 Pitched Roof Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate pitched roofs and attic spaces, and has a thermal conductivity of just 0.019 W/m.K across all thicknesses.
120mm Kingspan Kooltherm K112 Framing Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate timber and steel framing systems with thermal conductivity of just 0.019 W/mK across all thicknesses.
140mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
150mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
25mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
25mm Kingspan Kooltherm K107 Pitched Roof Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate pitched roofs and attic spaces, and has a thermal conductivity of just 0.019 W/m.K across all thicknesses.
25mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
40mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
30mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
50mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
50mm Kingspan Kooltherm K107 Pitched Roof Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate pitched roofs and attic spaces, and has a thermal conductivity of just 0.019 W/m.K across all thicknesses.
50mm Kingspan Kooltherm K108 partial fill cavity wall board is a premium performance lower lambda insulation with a rigid thermoset fibre-free phenolic core. It is faced on both sides with a low emissivity composite foil facing and is used in partially filled cavity walls.
50mm Kingspan Kooltherm K112 Framing Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate timber and steel framing systems with thermal conductivity of just 0.019 W/mK across all thicknesses.
50mm Kingspan Kooltherm K5 External Wall Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core used as external insulation for masonry walls.
40mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
45mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
60mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
60mm Kingspan Kooltherm K107 Pitched Roof Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate pitched roofs and attic spaces, and has a thermal conductivity of just 0.019 W/m.K across all thicknesses.
60mm Kingspan Kooltherm K108 partial fill cavity wall board is a premium performance lower lambda insulation with a rigid thermoset fibre-free phenolic core. It is faced on both sides with a low emissivity composite foil facing and is used in partially filled cavity walls.
60mm Kingspan Kooltherm K112 Framing Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate timber and steel framing systems with thermal conductivity of just 0.019 W/mK across all thicknesses.
60mm Kingspan Kooltherm K5 External Wall Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core used as external insulation for masonry walls.
50mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
70mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
70mm Kingspan Kooltherm K107 Pitched Roof Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate pitched roofs and attic spaces, and has a thermal conductivity of just 0.019 W/m.K across all thicknesses.
70mm Kingspan Kooltherm K110 Soffit Board Insulation enhances thermal performance in soffit areas with its slim, efficient design. It’s easy to install and improves energy efficiency.
70mm Kingspan Kooltherm K112 Framing Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate timber and steel framing systems with thermal conductivity of just 0.019 W/mK across all thicknesses.
70mm Kingspan Kooltherm K5 External Wall Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core used as external insulation for masonry walls.
60mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
75mm Kooltherm K103 is a premium phenolic core floor insulation solution, designed to deliver exceptional performance with solid concrete or suspended timber floors.
75mm Kingspan Kooltherm K107 Pitched Roof Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate pitched roofs and attic spaces, and has a thermal conductivity of just 0.019 W/m.K across all thicknesses.
75mm Kingspan Kooltherm K108 partial fill cavity wall board is a premium performance lower lambda insulation with a rigid thermoset fibre-free phenolic core. It is faced on both sides with a low emissivity composite foil facing and is used in partially filled cavity walls.