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Price range: £157.13 through £215.86
Kingspan Thermaroof TR27 is a high-performance, rigid PIR (polyisocyanurate) insulation board designed for flat roofs waterproofed with fully adhered, mechanically fixed, or partially bonded membranes, including bitumen-based and single-ply systems. Suitable for both new build and refurbishment projects, it provides outstanding thermal efficiency and robust long-term performance.
The Kingspan Thermaroof TR27 insulation board combines high compressive strength and excellent thermal performance to deliver a reliable, energy-efficient solution for flat roofs. Made from a rigid polyisocyanurate (PIR) core, the board is faced on both sides with thermally stable glass tissue, providing strong adhesion and dimensional stability under demanding conditions.
It is suitable for use on concrete, timber, and metal roof decks with a variety of waterproofing systems, including bituminous membranes, mastic asphalt, and single-ply membranes. With its closed-cell structure, TR27 resists moisture ingress and maintains performance throughout its lifespan, even in challenging weather conditions.
Designed for quick installation and compatibility with most flat roofing systems, Kingspan Thermaroof TR27 is ideal for achieving high insulation values and compliance with Building Regulations Part L.
Key Features & Benefits
Applications
Warm flat roof systems on concrete, timber, or metal decks
Mechanically fixed or adhered bitumen, mastic asphalt, or single-ply systems
Commercial, industrial, and residential buildings
Available Sizes & Variations
Thickness (mm) | Board Size (mm) | Boards per Pack | Coverage per Pack (m²) |
50 | 1200 x 1200 | 6 | 8.64 |
100 | 1200 x 1200 | 4 | 5.76 |
| 150 | 1200 x 1200 | 2 | 2.88 |
Technical Specifications
Property Specification
Product Name: Kingspan Thermaroof TR27
Core Material: Rigid Polyisocyanurate (PIR)
Facing: Thermally stable glass tissue (both sides)
Thermal Conductivity (λ-value): 0.022 – 0.026 W/m·K (depending on thickness)
Compressive Strength: ≥150 kPa at 10% compression
Board Size: 1200 mm x 1200 mm
Applications: Adhered, mechanically fixed, or partially bonded flat roof systems
Typical Deck Types: Concrete, timber, or metal
Certification: BBA approved
Compliance: Meets Building Regulations Part L
Kingspan is a market leader in building envelope and insulation products for energy-efficient roofing. Their systems are engineered for performance, helping meet thermal targets while simplifying installation.
