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165mm Celotex XR4165 PIR Insulation Board 2400mm x 1200mm

URN: 3001308
£85.10inc. VAT £29.56 per m2
£85.10inc. VAT
£29.56 per m2
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

165mm Celotex XR4165 is a high-performance thermal insulation PIR board with composite foil facings. It can be used for roof, floor, wall and timber joist applications.
Min 4 Minimum order of 4

Nationwide Delivery

Tue 6 May

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Product Overview

165mm Celotex XR4165 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: 3001308
£85.10inc. VAT
Min 4 Minimum order of 4
Min 4 Minimum order of 4

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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, 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

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

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Returns

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

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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:165mm
Width:1200mm
Length:2400mm
Sales Unit:Board
Sales Unit Coverage:2.88m2
Brand:Celotex
Manufacturer's Reference:XR4165
Weight:19.27kg
Thermal Conductivity:0.022W/mK

About 165mm Celotex

  • XR4165 is part of Celotex's 'Extra Resistance' (XR) board family - available in thicknesses greater than 100mm.
  • Specifically engineered to provide enhanced thermal performance, offering greater resistance to heat flow. 
  • Delivers exceptional thermal efficiency with a thermal conductivity of just 0.022 W/m.K. 
  • Low-emissivity foil-facing enhances efficiency by reflecting radiant heat within sealed air spaces.
  • BBA certified for use in roof, wall and floor applications.
  • Targeted at ‘cut-to-fit’ applications between rafters or joists. 
  • Lightweight and rigid - simplifies cutting, handling, and installation across various applications.


Applications 

  • Pitched Roof Insulation - Loft, Between Rafters, Under/Over Rafters, Sarking.
  • Flat Roof Insulation - Balconies, Terraces, Between/Under Joists.
  • External Wall Insulation - Timber Frame Walls.
  • Ground Floor Insulation - Beam & Block Floors, Concrete Slab Floors, Suspended Timber Floors.


Benefits 

  • Excellent Thermal Performance - Thermal conductivity of 0.022 W/mK.
  • Moisture Resistant - Prevents water absorption, maintaining thermal efficiency.
  • Environmentally Responsible - Low Global Warming Potential (GWP) and Zero Ozone Depleting Potential (ODP).
  • Cost-Effective - Offers high performance at a competitive price point.
  • Non-Toxic - Safe to handle and install, with no harmful emissions.
  • Low Emissivity Foil Facings - Improves thermal insulation performance within cavity air spaces.


Certifications

  • Spread of Flame: Euroclass E Reaction to Fire classification, according to BS EN 13501-1.
  • Thermal Conductivity of 0.022 W/m.K: Reduces the thickness of insulation required to hit the target U-value - BS EN 12667.
  • Compressive Strength: ≥140kPa - BS EN 826.
  • BRE Green Guide Rating of A for Sustainability: Assists in demonstrating environmental performance in BREEAM assessments.
  • BBA Certified.


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