120mm Kingspan Thermaroof TR27 Flat Roof Insulation Board 1200mm x 1200mm (5.76m2/Pack)

URN: 3004100
£183.04ex. VAT £31.78 per m2
£183.04ex. VAT
£31.78 per m2
info Non-returnable This product is non-returnable. Once delivered, it cannot be returned under any circumstances. Your statutory rights are not affected.
Bulk Discount
3+ packs 3+ packs 6+ packs
£181.21ex. VAT £179.38ex. VAT £177.55ex. VAT
Coverage required
m
m
Based on your total area of m2 (inc. 10% wastage) - of these are required (actual coverage of m2)

We recommend purchasing at least 10% extra product to allow for errors, damages or obstacles

Foil-faced PIR insulation board for inverted warm roof systems. Suitable for new build or refurbishment. 120mm thickness meets compliance for many new build specifications.

Nationwide Delivery

Fri 21 Nov

Order by 2pm tomorrow
  • 16hrs
  • 23mins
  • 11secs

Delivery & Returns Info

Make 3 payments of £61.01 with PayPal Learn more
Make 3 payments of £61.01 with Klarna Learn more
Make 4 payments of £45.76 with Clearpay Learn more

Product Overview

Foil-faced PIR insulation board for inverted warm roof systems. Suitable for new build or refurbishment. 120mm thickness meets compliance for many new build specifications.

URN: 3004100
£183.04ex. VAT

Delivery & Returns Information

How Our Delivery Works

We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.

Delivery Areas & Charges

Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, EH, FK, KA, KW, KY, IV, LA, LD, LL, ML, NP, PA, PH, SA, SY & TD
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.

Standard (Nationwide) Delivery

Insulation, Plasterboard and Drylining Products
ORDER VALUE DELIVERY CHARGE
Under £350 £35 ex. VAT
Over £350 ex. VAT FREE
Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £100 £20 ex. VAT
Between £100 - £300 ex. VAT £10 ex. VAT
Over £300 ex. VAT FREE
Screws & Fixings and Adhesives & Sealants
ORDER VALUE DELIVERY CHARGE
Under £50 £5 ex. VAT
Over £50 ex. VAT FREE

Express Delivery

Express Delivery - Insulation and Plasterboard & Drylining
ORDER VALUE DELIVERY CHARGE
Under £400 £50 ex. VAT
Over £400 ex. VAT £35 ex. VAT
Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £300 £50 ex. VAT
Over £300 ex. VAT £35 ex. VAT

View Full Delivery Policy

Returns

We offer a 30 day returns policy on any faulty products.

View Full Returns Policy


Key Features

  • {{roofing}} Use in flat roofs with single ply waterproofing
  • {{layers}} Coated glass tissue facing
  • {{add_task}} Zero Ozone Depletion Potential (ODP)
  • {{assignment_turned_in}} BBA certified

Technical Specification

Technical Specification
Product:TR27
Material Type:PIR
Thickness:120mm
Width:1200mm
Length:1200mm
Pieces Per Pack:4
Sales Unit:Pack
Sales Unit Coverage:5.76m2
Brand:Kingspan
Weight:28.63kg
Thermal Conductivity:0.024W/mK
Status:Non-Returnable

Technical Downloads

Product Overview

Kingspan Thermaroof TR27 Flat Roof Insulation Board measuring 120mm thick and 1200mm x 1200mm in size. High-performance rigid insulation board designed for use on flat roofs waterproofed with fully adhered, mechanically fixed, or ballasted single-ply, bituminous, or mastic asphalt membranes.


Manufactured from rigid polyisocyanurate (PIR) insulation core, the board delivers excellent thermal efficiency with minimal thickness, achieving reliable long-term performance and dimensional stability. 

Faced on both sides with a tough, thermoset-coated glass tissue, it provides enhanced adhesion, mechanical strength, and compatibility with a wide range of roofing systems.

Lightweight yet rigid, the board simplifies handling and installation on site while ensuring uniform insulation coverage across large roof areas. 

The 120mm thickness fully complies with specifications for the majority of new construction projects.

Features & Benefits

  • High thermal efficiency: PIR insulation core provides superior thermal resistance, reducing heat loss through the roof structure.
  • Robust facing: Coated glass tissue facings enhance durability, adhesion, and mechanical performance.
  • Lightweight design: Easy to lift and position on site, improving installation speed and safety.
  • Moisture resistance: Closed-cell structure resists water ingress and maintains insulation integrity.
  • Compatibility: Suitable for use with fully adhered, mechanically fixed, or ballasted flat roof systems.
  • Thickness: 120mm board designed for enhanced energy performance and regulatory compliance.


Applications

  • Flat roofs: Designed for use beneath bituminous, single-ply, or mastic asphalt waterproofing systems.
  • Overlay projects: Suitable for thermal upgrading of existing roofs with limited height tolerance.
  • Commercial buildings: Ideal for insulated warm roof systems in offices, schools, and retail units.
  • Industrial units: Used on metal deck and concrete substrates where high compressive strength is required.


Installation Guidance

  • Prepare substrate: Ensure the deck is clean, dry, and free from contaminants before installation.
  • Lay boards in brick bond: Stagger joints and fit tightly to minimise thermal bridging.
  • Fix securely: Adhere or mechanically fix in accordance with the roofing system specification.
  • Seal joints: Apply appropriate tape or sealant where specified to maintain insulation continuity.
  • Protect from exposure: Cover promptly with the chosen waterproofing membrane after installation.


Compliance & Performance

  • Material specification: Rigid thermoset polyisocyanurate (PIR) core with coated glass tissue facings on both sides.
  • Thermal conductivity: As low as 0.024 W/m·K, delivering high thermal efficiency at minimal thickness.
  • Compressive strength: Typically exceeds 150 kPa at 10% compression, suitable for foot traffic during installation.
  • Water vapour resistance: Resistant to the passage of water vapour, maintaining insulation integrity under humid conditions.
  • Membrane compatibility: Fully compatible with single-ply non-bituminous membranes bonded with solvent-based adhesives, and with most bituminous, mastic asphalt, and cold liquid-applied waterproofing systems.
  • Fire and insurance approvals: LPCB approved to LPS 1181: Part 1 and FM approved for Class 1 steel deck roof assemblies.
  • Environmental performance: Non-deleterious material manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP).
  • Vapour control requirement: Should be installed over an appropriate vapour control layer in accordance with project-specific condensation risk and U-value calculations.
  • Standards compliance: Produced under ISO 9001 Quality and ISO 14001 Environmental Management Systems.
  • Important note: Boards must be protected from weather exposure prior to waterproofing installation and handled in accordance with Kingspan installation guidance.


All Categories

Services