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50mm Celotex CW4050 Cavity Wall Insulation Board 1200mm x 450mm (5.94m2/Pack)

URN: 3002014

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£45.15ex. VAT £7.60 per m2
£45.15ex. VAT
£7.60 per m2
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£44.91ex. VAT £44.67ex. VAT £44.50ex. VAT
50mm Celotex CW4050 is specifically designed for use in partial-fill cavity wall applications. It features low emissivity foil facings for improved thermal performance in cavity air spaces.

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Nationwide Delivery

Tue 12 Mar

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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

Product Overview

50mm Celotex CW4050 is specifically designed for use in partial-fill cavity wall applications. It features low emissivity foil facings for improved thermal performance in cavity air spaces.

URN: 3002014
£45.15ex. VAT

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

Insulation, Plasterboard and Drylining Products
ORDER VALUE DELIVERY CHARGE
Under £150 ex. VAT £50 ex. VAT
Between £150 - £300 ex. VAT £35 ex. VAT
Over £300 ex. VAT FREE
Timber & Sheet, Building Materials, Doors & Joinery and Gardens & Landscaping Products
ORDER VALUE DELIVERY CHARGE
Under £100 ex. VAT £35 ex. VAT
Between £100 - £300 ex. VAT £20 ex. VAT
Over £300 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

Express Delivery

Express Delivery - Insulation and Plasterboard & Drylining
ORDER VALUE DELIVERY CHARGE
Under £300 ex. VAT £50 ex. VAT
Over £300 ex. VAT £35 ex. VAT
Express Delivery - Timber & Sheet, Building Materials, Doors & 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.

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Returns

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

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Key Features

  • Rigid partial fill cavity wall insulation
  • Aluminium composite facing on both sides
  • 0.022 W/mK thermal conductivity
  • Easy to handle and install
  • Zero Ozone Depletion Potential (ODP)
  • BBA certified

Technical Specification

Technical Specification
Material Type:PIR
Thickness:50mm
Width:450mm
Length:1200mm
Pieces Per Pack:11
Sales Unit:Pack
Sales Unit Coverage:5.94m2
Brand:Celotex
Manufacturer's Reference:CW4050
Weight:1.92kg/m2
Thermal Conductivity:0.022W/mK

Technical Downloads

Warmth is imperative to comfort. With Celotex CW4050 Cavity Wall Insulation Board you can reduce undesirable heat loss, thus bringing energy bills down. Comprised of a PIR core sandwiched between low emissivity foil facings on both sides, these boards have an impressive thermal conductivity of just 0.022 W/mK.

Celotex 50mm cavity insulation is an insulation board aimed specifically at partial fill cavity wall applications. These cavity insulation batts fit snugly in between cavity wall ties, and are perfect for use in new builds and extensions with a masonry cavity wall construction.

Celotex 50mm cavity insulation is a high-performance BBA certified solution and is the leading brand in the market for PIR cavity wall insulation. Sized at 1200mm x 450mm, these conveniently sized boards are rigid, lightweight and easy to handle and install. They are also manufactured using blowing agents with low global warming potential (GWP) and zero ozone depletion potential (zero ODP). 


Celotex CW4050 Applications

Celotex 50mm cavity insulation is specifically designed for use in partial-fill cavity wall applications. As a high-performance insulation board featuring low emissivity foil facings, Celotex 50mm cavity insulation offers enhanced thermal performance when compared to typical PIR products.

These partial fill cavity batts are sized at 1200mm x 450mm to suit standard wall tie spacings (when using cavity tie clips for retention) and provide a closed joint with adjacent boards.

Celotex CW4050 Product Specifications

With gas and electric bills constantly on the rise, it has become more important than ever to improve the energy efficiency of our homes. By investing in partial-fill Celotex 50mm cavity insulation, you can reduce your energy bills and keep your home warmer for longer. It is a closed-cell, water repellent insulation board meaning not only will the boards provide weather-tight protection but moisture won't compromise insulation performance.

It is made from PIR (rigid polyisocyanurate), which has a thermal conductivity value of 0.022 W/mK. PIR is a good choice for homeowners who want to protect their homes from the elements and prevent air movement and heat loss in vulnerable exposure zones. PIR insulation promises durability and excellent thermal protection, better than that of most other building materials.

Let's check the specs:

  • Flanked by low emissivity aluminium foil facings on either side for improved thermal insulation performance in cavity air spaces
  • Can be fitted in new build or refurbishment insulation projects
  • CW4050 is British Board Approved (BBA) for use as partial fill insulation in cavity walls
  • Complies with building regulations for improving the thermal envelope of your home
  • Zero Ozone Depletion Potential (ODP) and Low Global Warming Potential (GWP)
  • Suitable for use in masonry cavity walls
  • BBA certified
  • BRE Green Guide Rating of A for sustainability
  • Board: 1200 x 450


Celotex CW4050 Certifications

Celotex 50mm cavity insulation is comprised of a PIR core and foil facings on either side. PIR is one of the most popular insulation materials on the market because it delivers excellent thermal protection at an affordable price. The insulation component of this Celotex board is given an A+ rating in comparison to the BRE Green Guide 2008.

Let's check the certifications:

  • Spread of flame: fire classification of Class E
  • 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


Celotex 50mm cavity insulation delivers thinner solutions that meet target U-values as required by Building Regulations.

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