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25mm Kingspan Thermaroof TR26 Flat Roof Insulation Board 2400mm x 1200mm

URN: 3004093
£26.74ex. VAT £9.28 per m2
£26.74ex. VAT
£9.28 per m2
Bulk Discount
12+ boards 24+ boards 36+ boards
£26.47ex. VAT £26.21ex. VAT £25.94ex. VAT
25mm Kingspan Thermaroof TR26 is compatible with all mechanically fixed PVC single-ply waterproofing systems. It can also be used on zero pitch roofs, flat concrete, metal or timber roof decks.

Nationwide Delivery

Tue 12 Mar

±12 Sold in multiples of 12
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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

Product Overview

25mm Kingspan Thermaroof TR26 is compatible with all mechanically fixed PVC single-ply waterproofing systems. It can also be used on zero pitch roofs, flat concrete, metal or timber roof decks.

URN: 3004093
£26.74ex. VAT
±12 Sold in multiples of 12
x12 Sold in multiples of 12

Delivery & Returns Information

All delivery charges are shown in your basket and are dependent on the total value of items in your basket based on product category.

Standard (Nationwide) Delivery

Insulation, Plasterboard and Drylining Products
ORDER VALUE DELIVERY CHARGE
Under £150 ex. VAT £50 ex. VAT
Between £150 - £300 ex. VAT £35 ex. VAT
Over £300 ex. VAT FREE
Timber & Sheet, Building Materials, Doors & Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £100 ex. VAT £35 ex. VAT
Between £100 - £300 ex. VAT £20 ex. VAT
Over £300 ex. VAT FREE
SuperFOIL and YBS products
ORDER VALUE DELIVERY CHARGE
Each item £10 ex. VAT
Over £350 ex. VAT of 1 brand FREE
Screws & Fixings and Adhesives & Sealants
ORDER VALUE DELIVERY CHARGE
Under £100 ex. VAT £7.50 ex. VAT
Over £100 ex. VAT FREE
Thermafleece CosyWool Roll & SupaSoft Insulation
QUANTITY DELIVERY CHARGE
1 £30 ex. VAT
2 £60 ex. VAT
3 to 12 £70 ex. VAT
13 to 24 £140 ex. VAT
25 to 36 £210 ex. VAT
37 to 48 £280 ex. VAT
49 to 60 £350 ex. VAT
61+ £420 ex. VAT
Thermafleece CosyWool Slab, Thermafleece UltraWool & Thermafleece NatraHemp
QUANTITY DELIVERY CHARGE
1 £30 ex. VAT
2 £60 ex. VAT
3 to 4 £70 ex. VAT
5 to 8 £140 ex. VAT
9 to 12 £210 ex. VAT
13 to 16 £280 ex. VAT
17 to 20 £350 ex. VAT
21+ £420 ex. VAT

Express Delivery

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

This charge is based on delivery to mainland UK excluding the Scottish Highlands. If your delivery address is in the Scottish Highlands a member of our customer service team will contact you prior to processing your order should an additional delivery charge apply. We do not offer deliveries outside the UK mainland.

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Returns

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

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Key Features

  • Use in flat roofs with single ply waterproofing
  • Composite foil facing
  • 0.022 W/mK thermal conductivity
  • Resistant to water vapour
  • Zero Ozone Depletion Potential (ODP)
  • BBA certified

Technical Specification

Technical Specification
Material Type:PIR
Thickness:25mm
Width:1200mm
Length:2400mm
Pieces Per Pack:12
Sales Unit:Board
Sales Unit Coverage:2.88m2
Brand:Kingspan
Weight:1.11kg/m2
Thermal Conductivity:0.022W/mK
Status:Non-Returnable

Technical Downloads

25mm Kingspan TR26 is a high-performance insulation board. It is designed to reduce the amount of heat that homeowners lose through their flat roofs. Each board is comprised of a rigid thermoset PIR core that has two composite foil facings on either side. Overall, the board has a thermal conductivity of 0.022 W/mK. 

PIR is often a popular choice for homeowners who want to reduce their energy bills because it delivers excellent thermal protection at an affordable price. Kingspan Thermaroof TR26 boards are very versatile. 

They are manufactured to high standards and are suitable for both new build and refurbishment projects. They are fully compatible with flat roofs that have mechanically fixed single ply waterproofing systems, most green roof systems, and metal deck roof assemblies. 

Although you should always install Therma TR26 insulation with an additional waterproof membrane, the board itself is resistant to water vapour. When you choose TR26 for your flat roof insulation project, fungi and rot are a thing of the past.


Kingspan Therma TR26 is comprised of a rigid thermoset insulation core of polyisocyanurate (PIR) that is sandwiched between two low-emissivity composite foil facings. By insulating flat roofs, you can improve the overall thermal envelope of your home. PIR insulation has a thermal conductivity of 0.022 W/mK, which makes it one of the best thermal insulators on the market.

Kingspan manufactures Thermaroof TR26 with the environment in mind. These boards are manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential (GWP). TR26 is perfect for people who want high-performance materials that have a low environmental impact.

Kingspan Thermaroof TR26 50mm is has a pack coverage of 17.28m2.

Kingspan TR26 Insulation Applications

Kingspan specialises in creating tailor-made insulation boards for specific purposes. Kingspan TR26 25mm insulation is designed for installation in flat roofs. Whether you have a flat or pitched roof, you need to insulate your space. Homeowners lose around a quarter of the heat in their homes through their roofs, which makes them a focal point for people who want to reduce bills.

Kingspan TR26 is compatible with most flat roofs waterproofed with mechanically fixed single-ply and most green roof systems. Any flat room system would benefit from the thermal qualities of TR26. This board is even suitable for new build, refurbishment, or fast track building projects. 

Kingspan Thermaroof PIR Core

PIR (polyisocyanurate) is the go-to choice for people who want affordable insulation that delivers excellent thermal protection. Kingspan Therma TR26 has a fibre-free rigid thermoset PIR core.

There are lots of benefits of choosing PIR, with one of the biggest being thermal performance. PIR has a thermal conductivity of 0.022 W/mK. Thermal conductivity is the most important consideration for people who want to reduce their energy bills and keep their homes warmer for longer. PIR is second only to phenolic insulation in items of thermal performance.

Kingspan TR26 also benefits from the other qualities of PIR. It is water-resistant and non-deleterious. You can handle and install these boards without worrying about health concerns.

Kingspan TR26 Insulation Fire Rating

All insulation materials have a fire rating. The Euroclass scale awards insulation materials across Europe with a rank from A1 (non-combustible) to F (combustible). Materials undergo up to five different tests to achieve a fire rating.

Thermaroof TR26 has a Euroclass rating of E, meaning it has a high contribution to fire. A poor Euroclass rating does not mean that you should avoid the material. Lots of insulation materials are very thermally efficient, but also contribute to the production of fire. You can use a build-up of materials that do not contribute to fire to safeguard your home.

Kingspan Thermaroof TR26 Water Resistance

One of the added benefits of Kingspan TR26 boards is that they are water-resistant. The rigid PIR insulation core is resistant to water. The core is sandwiched between two composite aluminium foil facings, which are also resistant to water. Despite all this, you should always install Kingspan TR26 insulation with an additional waterproofing system.

Lots of homeowners choose water-resistant insulation. When you choose insulation that is resistant to moisture, you do not have to think about fungi or rot. Rot can impact the longevity of your insulation materials.

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