4 Reviews

5
View Product Reviews

150mm Celotex XR4150 PIR Insulation Board 2400mm x 1200mm

URN: 3001022
Core
£42.50ex. VAT £14.76 per m2
£42.50ex. VAT
£14.76 per m2
Bulk Discount
10+ boards 20+ boards 20+ boards
£42.08ex. VAT £41.65ex. VAT £41.23ex. VAT
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

150mm Celotex XR4150 is a high-performance thermal insulation PIR board with composite foil facings. It can be used for roof, floor, wall and timber joist applications.

Express Delivery

Tomorrow

Standard Delivery

Mon 25 Nov

Order within 3hrs

Delivery & Returns Info
Make 3 payments of £14.17 with PayPal Learn more
Make 3 payments of £14.17 with Klarna Learn more

Product Overview

150mm Celotex XR4150 is a high-performance thermal insulation PIR board with composite foil facings. It can be used for roof, floor, wall and timber joist applications.

URN: 3001022
£42.50ex. VAT

Guaranteed best price


Beat My Quote

Trade account


Register for trade prices

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

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

Core Products
Core
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 ex. VAT £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 ex. VAT £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 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
Block Pavers
ORDER VALUE DELIVERY CHARGE
Under £100 ex. VAT £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 ex. VAT £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

* 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)
Postcodes: KW 1-14 - £120 ex VAT (total delivery cost)
Highlands and Islands: £280 ex VAT (total delivery cost)

Ironmongery
QUANTITY DELIVERY CHARGE
1+ £16.50 ex. VAT

Express Delivery

Express Delivery - Insulation and Plasterboard & Drylining
ORDER VALUE DELIVERY CHARGE
Under £400 ex. VAT £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 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.

View Full Delivery Policy

Returns

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

View Full Returns Policy

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

Technical Specification
Material Type:PIR
Thickness:150mm
Width:1200mm
Length:2400mm
Sales Unit:Board
Sales Unit Coverage:2.88m2
Brand:Celotex
Manufacturer's Reference:XR4150
Weight:17.57kg
Thermal Conductivity:0.022W/mK

What Is 150mm Celotex XR4150?

Reduce annual heating bills whilst cutting your carbon footprint with 150mm Celotex XR4150 boards; the 'XR' of which means 'Extra Resistance'. 

Celotex XR4000 distinguishes itself by being the thickest PIR insulation offering within the Celotex product range. The notable thickness of the material not only highlights its sturdiness but also emphasises its superior ability to hold in heat.

With a low thermal conductivity of just 0.022 W/m.K, 150mm Celotex XR4150 delivers optimum thermal performance, preventing heat loss with minimal thickness whilst meeting the current and future requirements of Building Regulations. 

150mm Celotex Manufacture 

XR4150 Celotex boards are made from an expanded Polyisocyanurate (PIR) insulation foam with a foil facing on either side, using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP). This renders it an ideal choice for those focused on building sustainable homes. 

Whether you're insulating a solid floor or a partition wall, Celotex XR4150 is certified by the BBA for use in a number of applications including roof, wall and floor systems.

Not what you're after? We stock a range of insulation solutions suitable for flat roofs, cavity walls and a range of other applications. 

Celotex XR4150 PIR Insulation Board Key Features

Celotex XR4150 is a polyisocyanurate PIR insulation board with an impressive thermal conductivity of just 0.022 W/mK.

150mm Celotex boards are the go-to thermal insulation solution for the eco-conscious who want to improve heat retention in their homes whilst making 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 - excellent thermal performance
  • Enables users to achieve U-values with minimum thickness
  • Moisture-resistant
  • Low Global Warming Potential (GWP) and Zero Ozone Depleting Potential (ODP)
  • Features low emissivity foil facings giving improved thermal insulation performance within sealed cavity air spaces
  • Reduces thermal bridging
  • Compressive strength of 140kpa at 10% compression
  • Easy to cut and shape
  • Can be used as a solution for roof, floor and wall insulation
  • Provides reliable long-term energy savings for buildings


150mm Celotex XR4150 PIR Insulation Board Applications

150mm Celotex XR4150 is suitable for ‘cut-to-fit- applications between joists and rafters. This enables you to achieve lower U-values with just a single layer of insulation. 

150mm Celotex XR4150 is a highly versatile multi-purpose insulation board ideal for various applications including pitched roofs, solid floors, solid masonry walls, timber frames and steel frames. 

The XR4150 is produced to the highest manufacturing standards and has a BBA (British Board of Agrement) certificate as fit for use in defined solid roof, wall and floor applications.

150mm Celotex XR4150 insulation board is 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
  • Timber framed & steel framed systems


Celotex XR4150 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 Celotex XR4150:

  • 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
  • CE marking compliance to BS EN 13165:2001 


150mm Celotex XR4150 Storage & Handling

Celotex XR4000 PIR insulation boards are lightweight and easy to handle. 

If you need to store 150mm 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.

Other Celotex Products


About Celotex

Celotex is a leading British manufacturer of 150mm PIR insulation. It was founded decades ago and has since evolved from a fibreboard insulation company to one that focuses on PIR boards.

The XR4150 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 XR450 helps to achieve lower U-Values, energy use and carbon dioxide emissions targets set by the national building regulations.

Customer Reviews

5
4
3
2
1
5/5 based on 4 reviews

I used this in my roof. Easy to cut and install

Amad A on

Fantastic service. Board came on it's agreed delivery date

Hugh F on

Great PIR insulation board. Used in cavity air spaces and house is now noticeably warmer.

Stanley Cooper on

Very good at insulating

Tom Richards on

Leave a Review

Related Articles

How to Insulate Under Floorboards Without Removing

How To Install Celotex Insulation Boards

Celotex Floor Insulation Guide

Celotex vs Kingspan: What’s the Difference?

All Categories

Services