Kingspan Kooltherm | Kingspan Kooltherm Insulation | Kingspan Insulation

Welcome to the Kingspan Kooltherm category on Build4Less, where we feature a wide range of high-performance insulation products. Kingspan Kooltherm offers advanced insulation solutions, each tailored to meet specific requirements for your construction and renovation projects.

Insulated Plasterboard - Kingspan Kooltherm K118

Ideal for wall applications, K118 Insulated Plasterboard combines insulation and plasterboard in one product, making it perfect for space-saving interior wall insulation. It's suitable for both new builds and refurbishments, offering excellent thermal performance.

Floor Insulation - Kingspan Kooltherm K103

K103 Floorboard is designed for thermal insulation of concrete slab and suspended timber floors. It provides high thermal efficiency with minimal thickness, making it an excellent choice for projects where floor height is a critical factor.

Roof Insulation - Kingspan Kooltherm K7 Pitched Roof Board

K7 Pitched Roof Board is specifically crafted for insulating pitched roofs. It can be used both between and under rafters, offering excellent thermal performance and ensuring your roof space is efficiently insulated.

Cavity Wall Insulation - Kingspan Kooltherm K108

K108 Cavity Board is perfect for insulating cavity walls. It’s designed to provide high thermal efficiency in a thinner profile, making it ideal for both new build and retrofit projects where cavity space might be limited.

External Wall Insulation - Kingspan Kooltherm K15 Rainscreen Board

K15 Rainscreen Board is designed for use in rainscreen cladding systems. It offers excellent fire performance and thermal efficiency, making it a preferred choice for external wall insulation in a variety of building types.

Soffit Insulation - Kingspan Kooltherm K110

K110 Soffit Board is specifically tailored for insulating structural ceilings (soffits). It’s a practical solution for thermal insulation in car parks, basements, and other ceiling applications.

Frame Insulation - Kingspan Kooltherm K12 Framing Board

K12 Framing Board is an optimal solution for insulating timber and steel framing systems. It offers high thermal performance with minimal intrusion into living space, making it ideal for both new builds and renovations.

K-Roc Rainscreen Slab

The K-Roc Rainscreen Slab offers a robust solution for rainscreen cladding applications. It’s designed to provide excellent thermal performance and fire resistance in external wall systems.

External Wall Board - Kingspan Kooltherm K5

Kooltherm K5 is an external wall board designed for use under mechanically fixed facade systems. It offers excellent insulation performance, making it a great choice for external wall insulation systems.

Cavity Closers - Kingspan Kooltherm

Kingspan Kooltherm Cavity Closers provide an efficient thermal bridge solution for window and door reveals. They are easy to install and ensure better energy efficiency in your building envelope.

When selecting the right Kingspan Kooltherm product for your project, consider the specific area of application (wall, floor, roof, etc.), the type of construction (new build or refurbishment), and the performance requirements (thermal, fire resistance). This range of Kingspan Kooltherm products ensures you have access to premium insulation solutions for every part of your building project.

Benefits of Kingspan Kooltherm

• Ultra-low lambda: Achieve high thermal resistance with less thickness than standard boards.
• Space-saving: Maintain more usable floor area, especially valuable in tight refurb projects.
• Application-specific facings: Optimised facings for floors, cavities, soffits and linings improve performance and durability.
• Versatile & project-ready: Options for timber/steel frame, internal lining (insulated plasterboard), ground floors, car-park/soffit areas and full-fill cavity walls.
• Quality you can trust: Manufactured by Kingspan, widely specified across the UK construction industry.

Applications of Kingspan Kooltherm

• Internal lining & retrofit upgrades – insulated plasterboard solutions for quick thermal improvements.
• Timber & steel frame walls – high-performance boards for between-stud or sheathing-type build-ups.
• Ground floors – suitable for concrete slabs, beam & block and suspended timber floors.
• Exposed soffits & car parks – soffit boards designed for underside-of-slab insulation.
• Full-fill cavity walls – moisture-managed cavity boards to meet targets in a slim section.

Why Choose Build4Less (B4L)?

• Curated Kooltherm range: We stock the key Kooltherm boards for UK projects, so you can spec and buy in one place.
• Helpful product pages: Clear sizes, thicknesses and coverage info to speed up take-offs and quotes.
• Competitive pricing & delivery: Fair prices, transparent lead times and nationwide delivery options.
• Expert help on tap: Need a hand picking thicknesses or comparing build-ups? Our team can point you to the right board and accessories. 
• One-stop building partner: Add plasterboard, fixings, tapes, membranes and more to the same basket, fewer suppliers, fewer delays.