Celotex XR4000 - Higher Performance Thick PIR Insulation Board

Special Price £71.46 PRICE PER ITEM Regular Price £89.33
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Estimated Delivery: 2-5 Days
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Product Description

Overview of the Celotex XR4000

  • Specialised design – ideal for concrete slabs and blocks as well as underfloor heating 
  • Maintains a consistent performance – thermal conductivity of 0.022 W/mK 
  • High-quality materials – PIR insulation with foil facings on both sides and a foam core 
  • Minimal impact on the environment – zero ODP and low GWP 
  • For older and newer buildings – great for both refurbishments and brand-new builds 
  • Easy and clean installation – simple handling, straightforward application 
  • Designed to last – resistant to the damage caused by water vapour and mould 

One of several specialised insulation boards from Celotex, the XR4000 is particularly useful for use alongside concrete slabs, beams and blocks as well as suspended timbers and underfloor heating floors. 

What is This Insulation Made From? 

This product is a PIR insulation board with several stand-out features that allow it to perform to an exceptionally high standard. The board possesses foil facings on both sides, as well as a core that has been produced using a highly efficient polyisocyanurate foam. 

What Thicknesses and Sizes are Available? 

The product is available in a set size of 2400mm x 1200mm. These dimensions are ideal for many properties, and the boards can be cut down to smaller sizes if necessary. This is a thicker version of the Celotex PIR insulation board range, with thickness ranging from 120mm to 150mm.  

Is Celotex CR4000 Resistant to Mould and Moisture?  

This board is extremely resistant to a range of potential hazards, in particular those posed by exposure to moisture. Able to fend off the ingress of mould and erosion to an excellent degree, it has been designed to last for long periods of time without displaying signs of wear visually or in terms of performance. 

What Level of Thermal Conductivity Does This Insulation Offer? 

This board has a thermal conductivity rating of 0.022 W/mK, which means this product has fantastic insulation level potential. This is thanks in part to its specialised design, as well as the high-quality materials from which it is made. 

Is This Insulation Environmentally Friendly?  

The production methods used in the creation of this board were carried out with the intention of reducing the impact on our climate as much as possible. It because of this that this board can boast an Ozone Depletion Potential (ODP) rating of zero, as well as an extremely low Global Warming Potential (GWP) rating. 

Where Can Celotex XR4000 Be Used?  

This board is one of the more versatile in the Celotex range, with its thick build making it particularly useful to use alongside concrete due to its increased strength and durability. It can be also be used amongst rafters and joists thanks to its cut-to-fit design. 

Have a Question About the Celotex XR4000? 

We at Roofing Megastore are on hand to help answer any questions you may have about this or another product we trade in our extensive range. Please do give us a call on 01295 565565, email us or chat with us online. 


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Product Specifications

View as Feet & Inch
More Information
SKUCELXR4000
Lead Time2-5 Days
BrandCelotex
U Value0.022
Overall Length2400 mm
Overall Width1200 mm

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Delivery Information

We understand that ordering products online can be daunting, especially when ordering roofing materials. It is for this reason that we make our delivery processes as simple as possible for you. However, there are a few things to know about our delivery processes. These include:

  • When placing an order, you’ll see a breakdown of your delivery charge in your shopping cart. These charges are for the UK mainland only, and additional charges may apply for Northern Ireland, the Scottish Highlands and other regions.

  • Deliveries only take place on working days (Mon - Fri) and do not take place on Bank Holidays. 

  • You’ll find an estimated delivery on the majority of product pages below the 'Add to Basket' button. Whilst we aim to deliver your items within the estimated delivery, it is only an estimate. 

  • You're able to select a preferred delivery date in your shopping basket. Whilst we aim to deliver your items on this date, it is not guaranteed.
  • Orders placed after 12pm, during the weekend, and on a bank holiday will not be processed until the next working day. Please consider this when placing your order as it may impact your delivery date.

  • After you’ve placed your order, you’ll receive an order confirmation by email outlining the details of your order. Please check your order confirmation email and inform us of any mistakes or errors immediately.

  • Shortly after receiving your order confirmation you’ll receive a separate email confirming the planned delivery date.

  • We can only provide a delivery date and are not able to confirm the time delivery will be attempted. Therefore, we ask that somebody is able to accept and sign for your items throughout the started delivery date.

  • If you are unable to accept and sign for an order, it can be left in a safe location in most circumstances. Please email [email protected] if you would like an item to be left without a signature. 

  • Whilst we aim to hold the majority of our products in stock, due to the vast number of products we offer this is not always possible. Because of this we are required to send your items directly from the manufacturer on a small number of occasions, at which point a different delivery charge may apply as standard.  

  • On occasions the items ordered may be shipped from different depots, which could result in seperate deliveries taking place.

If you have more questions about our products or delivery, please contact our team online or by telephone.

Refund Information

We understand mistakes can be made and we therefore keep our cancellation and returns policy as simple as possible. However, there are a few things to know about cancelling an order or returning an item. These include:

Items Not Required

Should you no longer require an item, you have the right to cancel within 14 days of delivery unless the items are custom made. You needn’t give us reason for cancelling your order but will be required to notify us by email. Once notified we will provide an address for the items to be returned to and arrange the necessary refund.

Faulty or Damaged Items

On the rare occasion that an item is delivered faulty or damaged, we will exchange it or provide a refund. We must be notified by email as soon as possible and may require images. To avoid such an issue, we ask that customers do not sign for damaged goods.

Custom Made Items

A handful of items are ‘Custom Made’. This means they are typically manufactured to the specifications provided by you and are therefore non-refundable. This is unless they are deemed to be faulty or damaged at the time of delivery, at which point you should notify us by email as soon as possible.

Further Information

For further information on cancellations, returns and refunds please read our full policy by clicking here. This confirms any other requirements to consider (i.e. packaging), fees that may be charged (i.e. admin charges) and our policy for businesses.