Kingspan Roof Insulation | Kingspan Insulation | Roof Insulation

Explore our extensive range of Kingspan Roof Insulation products, each uniquely designed to meet diverse roofing needs. Our collection primarily includes the following categories:

Thermaroof Series

Thermaroof TR27 & TR26 Flat Roof Boards: Ideal for flat roof applications, these boards offer exceptional thermal performance and durability. Available in various sizes, they are perfect for both new construction and refurbishment projects.

Kooltherm Series

Kooltherm K15 Rainscreen Board & K110 Soffit Board: These products are specifically designed for rainscreen cladding and soffit applications. They provide excellent thermal insulation with a slim profile, making them suitable for space-constrained areas.

Speciality Insulation Products

• Thermaroof TR24: A versatile insulation solution for a variety of roofing applications, available in multiple sizes.
• K-Roc Rainscreen Slab: This slab is designed for rainscreen systems, providing enhanced thermal insulation and fire performance.
• GreenGuard GG700: A robust and durable insulation board, ideal for demanding roofing environments.

Water Management and Membranes

• Kingspan Aquazone Infiltration: An innovative solution for managing water infiltration in roofing systems.
• Kingspan Nilvent Breathable Membrane: This high-performance membrane offers additional protection against moisture, ensuring a dry and healthy roof structure.

Advanced Systems

OPTIM-R Roofing System: A next-generation insulation system offering the highest thermal performance with minimal thickness. This system is perfect for projects where space is at a premium.

Choosing the Right Insulation

Selecting the appropriate insulation depends on several factors:

• Roof Type: Flat or sloped roofs have different insulation needs.
• Space Availability: Consider the thickness and installation space.
• Thermal Requirements: Higher R-values mean better insulation.
• Water Management Needs: Some roofs require additional moisture protection.

Benefits of Kingspan Roof Insulation

• Exceptional thermal performance – Kingspan Roof Insulation achieves low U-values with slimmer build-ups, saving space and reducing heating bills.
• Moisture and fire resistance – Closed-cell cores resist water ingress, and many products carry independent BBA or FM approvals.
• Lightweight and strong – Easy to cut and handle on site, while offering high compressive strength for robust flat-roof applications.
• Versatile compatibility – Suitable for single-ply membranes, built-up bituminous systems, mastic asphalt and more.

Applications of Kingspan Roof Insulation

• Flat roofs – TR26 for mechanically fixed single-ply membranes; TR27 for fully adhered or bituminous systems.
• Tapered drainage – TT46 and TT47 create built-in falls on roofs lacking structural slope.
• Pitched roofs – K107 phenolic boards provide premium insulation under tiles or slats in warm-roof designs.
• New build and refurbishment – Ideal for domestic, commercial, and industrial projects seeking long-term thermal efficiency.

Installation Tips for Kingspan Roof Insulation

• Ensure the roof deck is clean, dry, and level before laying boards.
• Stagger joints and lay in a brick-bond pattern for maximum thermal continuity.
• Follow the roofing membrane manufacturer’s fixing method—mechanical fasteners for TR26/TT46, approved adhesives for TR27/TT47.
• For tapered boards, work from the drainage outlets upwards, keeping the designed fall consistent.
• Always use a suitable vapour control layer to prevent interstitial condensation.

Why Choose Build4Less (B4L)?

• Comprehensive range – From TR26 and TR27 to Thermataper and Kooltherm, all in one place.
• Competitive pricing & bulk packs – Great trade rates and multi-board options to match project size.
• Fast UK delivery – Many Kingspan products qualify for fast delivery.
• Expert support – Our team supplies contractors daily and can help with U-value calculations or quantity take-offs.