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12 Reviews
View Product Reviews120mm Celotex XR4120 PIR Insulation Board 2400mm x 1200mm
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| £33.91ex. VAT | £33.57ex. VAT | £33.22ex. VAT |
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Fri 3 Jan
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Mon 6 Jan
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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, DD, KW, IV, LD, LL, 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 | |
| Paving Stone Products | ||
| DELIVERY CHARGE | ||
| FREE | ||
| Screws & Fixings and Adhesives & Sealants | ||
| ORDER VALUE | DELIVERY CHARGE | |
| Under £100 | £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 | |
| Block Pavers | ||
| ORDER VALUE | DELIVERY CHARGE | |
| Under £100 | £17.50 ex. VAT | |
| Between £100 - £200 ex. VAT | £30.50 ex. VAT | |
| Between £200 - £900 ex. VAT | £105 ex. VAT | |
| Over £900 ex. VAT | FREE | |
| Artificial Grass | ||
| ORDER VALUE | DELIVERY CHARGE | |
| Under £100 | £12 ex. VAT | |
| Between £100 - £200 ex. VAT | £16.50 ex. VAT | |
| Over £200 ex. VAT | £22 ex. VAT | |
| Doors and Feature Panelling | ||
| QUANTITY | DELIVERY CHARGE | |
| 1 to 2 | £35 ex. VAT | |
| 3 to 4 | £45 ex. VAT | |
| 5+ | £60 ex. VAT | |
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* Deliveries of Doors and Panels to Scotland may incur additional costs and may have an extended delivery time of an additional 3 working days. Delivery to the postcodes below will be charged an additional delivery fee. Our customer service team will reach out to you if you order requires an additional delivery charge. This will be calculated based on the difference between the standard cost charged and the total cost outlined below:
Postcodes: KA1-29, IV1-39, AB, PH1-41, DD, PA1-19, KY, FK, FK15-21 - £90 ex VAT (total delivery cost) |
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| Ironmongery | ||
| DELIVERY CHARGE | ||
| 1+ | £16.50 ex. VAT | |
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: | 120mm |
| Width: | 1200mm |
| Length: | 2400mm |
| Sales Unit: | Board |
| Sales Unit Coverage: | 2.88m2 |
| Brand: | Celotex |
| Manufacturer's Reference: | XR4120 |
| Weight: | 14.2kg |
| Thermal Conductivity: | 0.022W/mK |
Technical Downloads
What Is 120mm Celotex XR4120?
Minimise heat loss by creating a thermal barrier with 120mm Celotex XR4120; 'XR' meaning 'Extra Resistance', with the XR4000 range featuring sizes thicker than 100mm.
Featuring foil facings, the 2.4m x 1.2m boards are manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP).
With a low thermal conductivity of just 0.022 W/m.K, Celotex XR4120 delivers the required U-values with minimal thickness and helps meet the current and future requirements of the Building Regulations. 120mm Celotex XR4120 is suitable for use in a number of applications including roof, wall and floor systems.
Where Is 120mm Celotex XR4120 Used?
120mm Celotex XR4120 is a highly versatile multi-purpose insulation board ideal for various applications including pitched roofs, solid floors, masonry walls, timber frames and steel frames.
The XR4120 is produced to the highest manufacturing standards and has a BBA (British Board of Agrement) certificate as fit for use in defined roof, wall and floor applications.
120mm Celotex XR4120 insulation board is an effective thermal insulation solution suitable for use in the following applications:
- Solid concrete floors
- Block, and beam floors
- Suspended timber joist floors
- Pitched roofs
- Partition wall and solid masonry wall constructions
- Timber framed & steel framed systems
Celotex XR4120 PIR Benefits
This convenient high-performance insulation board has excellent thermal performance and an impressive thermal conductivity of 0.022 W/mK.
120mm Celotex boards are the go-to thermal insulation solution for environmentally conscious individuals who want to improve heat retention in their homes and make long term energy savings.
They are manufactured with eco-friendly concepts in mind, manufactured using a blowing agent with low global warming impact and zero ODP (zero ozone depletion potential).
Let's take a look at the specs:
- Thermal conductivity of 0.022 W/mK - low U-values can be achieved without doubling-up insulation layers
- Moisture-resistant
- Low Global Warming Potential (GWP) and Zero Ozone Depleting Potential (ODP)
- Features low emissivity foil facings giving improved thermal insulation performance within cavity air spaces
- Easy to cut and shape
- Provides reliable long-term energy savings for buildings
Celotex XR4120 PIR Insulation Board Certifications
BS EN is British and European Standard Specifications. With over 100 years of experience, the British Standards Institute is recognised as the UK’s National standards body. BS EN considers 120mm Celotex XR4120:
- Spread of flame: Euroclass E Reaction to Fire classification, according to BS EN 13501-1
- Thermal conductivity of 0.022 W/m.K, reducing the thickness of insulation required to hit the target U-value - BS EN 12667
- BRE Green Guide Rating of A for sustainability - which can assist in demonstrating environmental performance in your BREEAM assessments
- BBA certified
120mm Celotex XR4120 Storage & Handling
These Celotex XR4000 range boards are lightweight and easy to handle. If you need to store 120mm Celotex boards for a while before installation, you should choose a cool, dry space. 2.4m x 1.2m insulation boards are not for external use, and therefore they should not be left outside for extended periods of time or allowed to get wet.
About Celotex
Celotex is a leading British manufacturer of 120mm PIR insulation. It was founded decades ago and has since evolved from a fibreboard insulation company to one that focuses on PIR boards. The XR4120 insulation board is just one of many popular thermal insulation solutions from Celotex XR4000 product range, with thicknesses ranging from 110mm to 150mm.
They are manufactured in accordance of quality management systems and are water vapour resistant. Celotex XR4120 helps to achieve lower U-Values, energy use and carbon dioxide emissions targets set by the national building regulations.
Customer Reviews
easy to work with and cut
Great customer experience from start to finish
Really lightweight considering how big each board looks
Exactly what I needed for my loft conversion
I always buy Celotex, the service of Materials Market was great
Came on time and cheapest I found online
Really easy to install
Great insulation at a good price
Excellent thermal performance. Foil facings on both sides meant I did need to buy some additional tape which was also inexpensive.
Great service from start to finish
excellent boards
durable
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