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Kingspan 25mm Thermaroof TR27 PIR Insulation Board (1200mm x 600mm) 8.64m2 (Pack of 12)

In Stock

SKU : YBM1101

Thermaroof TR27 is a PIR flat roof insulation suited to fully adhered single-ply, built-up felt, asphalt, and liquid systems. Compatible with green roofs, it’s easy to cut and install, making it ideal for both new build and refurbishment projects.

Lead Time: 3-5 Days

Manufacturer Model No:
TR27
Thickness:

From:
£76.82 Ex VAT
£92.18 Inc VAT

Description

Kingspan Thermaroof TR27 25 mm Flat Roof PIR Insulation Board (1200 mm × 600 mm, Pack of 12 - 8.64 m²)

Product Overview

Kingspan Thermaroof TR27 25 mm (1200 mm × 600 mm) Flat Roof PIR Insulation Board is a high‑performance rigid thermoset polyisocyanurate (PIR) insulation board designed for flat roof applications (new‑build or refurbishment) using fully‑adhered, mechanically‑fixed or partially‑bonded waterproofing systems, including single‑ply, bituminous, and liquid‑applied membranes. With excellent thermal performance (λ = 0.022 W/m·K) and durable foil facings, it provides a dependable warm‑roof solution with long‑term thermal stability and superior compressive strength.

Key Features & Benefits

  • High‑performance rigid PIR core with declared thermal conductivity of 0.022 W/m·K for exceptional insulation efficiency.
  • Low‑emissivity composite foil facings enhance thermal resistance and provide superior moisture protection.
  • Suitable for use with fully adhered, mechanically fixed, or partially bonded waterproofing systems including bitumen, liquid‑applied, and single‑ply membranes.
  • Compact 1200 × 600 mm board size enables easier handling and installation, especially on smaller roof areas or complex layouts.
  • Excellent compressive strength (≥150 kPa at 10% compression) for robust load‑bearing performance under roof traffic and mechanical fixings.
  • Thin 25 mm board ideal for insulation build‑ups with restricted upstand or roof height requirements.
  • Durable PIR core ensures long‑term thermal stability and consistent performance throughout the roof lifespan.
  • Manufactured under ISO 9001, ISO 14001, ISO 45001 and ISO 50001 certified systems for quality, environmental, and safety compliance.

 

Applications / Typical Uses

  • Ideal for insulating flat roofs in residential, commercial, and industrial buildings where a thin, durable, and thermally‑efficient insulation layer is needed.
  • Designed for use in warm‑roof constructions beneath bituminous, liquid‑applied, or single‑ply waterproofing membranes.
  • Suitable for both new‑build and refurbishment projects, including those requiring low build‑up height.
  • Can be applied over metal, concrete, or timber decks, provided an appropriate vapour control layer and detailing are included.

 

Installation & Handling

  • Store boards flat on a clean, dry, level surface, protected from weather and site moisture before installation.
  • Do not use boards that are damaged or have become wet.
  • Lay the boards tightly‑butted in a staggered (break‑bonded) pattern; ensure joints are offset between rows.
  • Fix boards using approved mechanical fasteners or adhesive systems depending on the deck type and waterproofing specification.
  • Ensure a suitable vapour control layer or sealed deck is applied beneath the insulation where required.
  • Install waterproofing membranes immediately after insulation fixing, following the manufacturer’s guidance to ensure adhesion compatibility.
  • Provide insulation continuity at upstands, parapets, and service penetrations to minimise thermal bridging.
  • Handle carefully to avoid damage to the foil facings or board edges, especially during cutting and placement.

 

Compliance & Certification

  • Manufactured to BS EN 13165:2012 + A2:2016 for factory‑made rigid PIR insulation boards.
  • Declared thermal conductivity λ = 0.022 W/m·K.
  • Reaction to fire classification: Euroclass F (System 4 AVCP).
  • Compressive strength: CS(10\Y)150.
  • Fully compatible with systems covered by third‑party approvals such as BBA Certificate 16/5332 for the Thermaroof TR27 range.
  • Produced under ISO 9001 (Quality), ISO 14001 (Environment), ISO 45001 (Health & Safety), and ISO 50001 (Energy Management) certified systems.

Additional information

Single Product Coverage

Manufacturer Model No

Total pack coverage

Thickness

Length

Width

Brand

Application

Material

Product Type

Edging

Facing

Thermal Conductivity

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Compressive Strength

Manufacturer's Technical Documents

Data Sheet

View
Declarations of Performance

View

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The average delivery lead time for the majority of orders is 3-5 working days from the date of your order, however, it could extend to 7-10 working days on rare occasions. Once the order has been placed, a member of staff will then be in contact to confirm a delivery date.

The following delivery fees apply to Grey delivery area.

  • Minimum order value: £200 ex VAT
  • Orders between £200 and £600 ex VAT£55ex VAT
  • Orders over £600 ex VAT: Free delivery

 

Delivery lead times for orders outside our standard delivery may take between 7-10  working days. If you are outside our standard grey delivery area, please click on the “Save & Share Basket” button at the cart stage, select the email option and send it to sales@theyardbm.co.uk or call us on 07902 952 591. We will get back with a delivery quote to you shortly.