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View Product Reviews25mm Unilin Xtratherm Thin-R PIR Insulation Board 2400mm x 1200mm
| 25+ boards | 50+ boards | 70+ boards |
| £11.85ex. VAT | £11.73ex. VAT | £11.61ex. VAT |
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Tomorrow
Standard Delivery
Wed 30 Apr
- 0days
- 0hrs
- 24mins
- 7secs
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Buy now. Pay with Klarna at your own pace.
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- Choose Clearpay at checkout to pay later with Pay in 4.
- Complete your purchase with the first payment today.
- Remaining payments are taken automatically.
Clearpay lends you a fixed amount of credit so you can pay for your purchase over 4 instalments, due every 2 weeks. Ensure you can make repayments on time. You must be 18+ and a permanent UK resident (excl Channel Islands). Clearpay charges a £6 late fee for each late instalment and a further £6 if it’s still unpaid 7 days later. Late fees are capped at £6 for orders under £24 and the lower of £24 or 25% of the order value for orders over £24. Missed payments may affect your ability to use Clearpay in the future and your details may be passed onto a debt collection agency working on Clearpay’s behalf. Clearpay is credit that is not regulated by the Financial Conduct Authority. T&Cs and other eligibility criteria apply at clearpay.co.uk/terms
Product Overview
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Klarna's Pay in 3 / Pay in 30 days are unregulated credit agreements. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Late fees may apply. Ts&Cs apply
Clearpay is unregulated credit. Use responsibly. 18+, T&Cs and late fees apply at clearpay.co.uk/apply
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.
This charge is based on delivery to mainland UK excluding the following postcodes: AB, CF, DD, DG, KW, IV, LD, LL, NP, PH, SA and SY. If your delivery address is in any of these postcode areas 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.
Standard (Nationwide) Delivery
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Core Products Core
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|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 ex. VAT | £25 ex. VAT |
| Over £300 ex. VAT | FREE |
Core Delivery charges apply only when all products in an order that have equivalents are accepted as such. If even one product cannot be substituted with an equivalent, the entire order will not qualify for Core Delivery charges.
| Insulation, Plasterboard and Drylining Products | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £150 | £50 ex. VAT |
| Between £150 - £400 ex. VAT | £35 ex. VAT |
| Over £400 ex. VAT | FREE |
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £100 | £25 ex. VAT |
| Between £100 - £250 ex. VAT | £20 ex. VAT |
| Over £250 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 | £7.50 ex. VAT |
| Over £100 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 |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{home}} Use in floors, framed walls and pitched roofs
- {{grade}} Aluminium composite facing on both sides
- {{thermostat}} 0.022 W/mK thermal conductivity
- {{build}} Easy to handle and install
- {{public}} Zero Ozone Depletion Potential (ODP)
- {{verified_user}} BBA certified
Technical Specification
| Material Type: | PIR |
|---|---|
| Thickness: | 25mm |
| Width: | 1200mm |
| Length: | 2400mm |
| Sales Unit: | Board |
| Sales Unit Coverage: | 2.88m2 |
| Brand: | Unilin |
| Thermal Conductivity: | 0.022W/mK |
Technical Downloads
What Is Unilin Xtratherm 25mm?
25mm Xtratherm Thin-R PIR Insulation is a high-performance foil faced Polyisocyanurate (PIR) insulation board highly regarded for its thermal performance and versatile nature.
Clad on either side by a gas-tight low emissivity aluminium layer, the board comprises an environment friendly, CFC-free polyisocyanurate (PIR) core.
25mm Xtratherm Insulation boards have a certified thermal conductivity value of just 0.022 W/mK, knocking other insulations (such as EPS, XPS and mineral wool) out of the park in terms of thermal performance. T
These 25mm boards can be cut to fit in between stud work, laid under a screed floor, or installed between rafters in a pitched roof, making them among the most commonly used insulation products on the market.
Xtratherm Thin R XT boards are popular among contractors and installers, as they feature similar performance capabilities to the likes of Kingspan, at a fraction of the cost.
Xtratherm 25mm Benefits
- Excellent thermal performance and moisture resistance
- Minimizes condensation and dampness risks
- Resists mold, fungi, bacteria, and microbial growth for durability
- Low thermal conductivity (0.022W/mK)
- High compressive strength (140kPa)
- Minimal intrusion into living space for maximum thermal performance
- Environmentally-conscious: made from PIR with zero ozone depletion potential (zero ODP) and low global warming potential (GWP)
25mm Xtratherm PIR Insulation Board Applications
Xtratherm Thin-R Rigid Insulation Board is a multi-application product designed for roofs, walls, floors, timber and steel framed systems. These 25mm boards can be cut to fit in between stud work, laid under a screed floor, or installed between rafters in a pitched roof.
For cavity wall applications, we recommend CavityTherm from the Xtratherm range: an innovative built-in insulation solution for traditional walls that achieves passive level U-Values as low as 0.12 W/m2K with excellent protection against thermal bridging. In all builds, we advise that you ensure tight fitting of the insulation boards to achieve continuity of insulation.
Xtratherm PIR Insulation Board Storage & Handling
The polythene wrapping in which the boards are supplied is not considered adequate protection for outside exposure.
Care should be taken to protect the insulation in storage and during the build process. To keep them in the best nick, we advise that you store the boards indoors on a level surface and under a protective cover.
The insulation boards can be readily cut using a sharp knife or fine-toothed saw.
Xtratherm Insulation Products - All You Need To Know
Xtratherm is one of the largest Irish manufacturers and suppliers of insulation. Xtratherm owns and operates two state-of-art production facilities in the UK and Ireland providing security of supply for a range of insulation products.
