Dimensions 1200 × 450 mm
Brand

Celotex

Thickness

50mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

11

Sales Unit

Board

Unit Coverage

5.94m2

Manufacturers Reference

CW4050

Thermal Conductivity

0.022W/mK

Density

31.5kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

1.92kg/m2

Product Range

Celotex Cavity Wall Board (CW4000)

Celotex CW4050 50mm Cavity Wall Board (1200mm x 450mm) – 5.94m2 pack

(12 customer reviews)
Delivery In 5-7 Working Days
Request your delivery date in checkout
Free Delivery
on orders over Ā£300
+VAT
Board of 11 (5.94m2)
Secure your product at this price before the increase

£47.41 ex VAT

In Stock

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Thickness
Stu Cazaly
Stu Cazaly
2024-07-11
Trustindex verifies that the original source of the review is Google.
Excellect service via ordering and email. Quick delivery and great communication with delivery driver. Highly recommended.
Kendo Nagasaki
Kendo Nagasaki
2024-07-09
Trustindex verifies that the original source of the review is Google.
Delivery was correct, well packaged and on time. Driver was very helpful. Overall a great experience. Highly recommend these guys šŸ‘
James Moore
James Moore
2024-07-08
Trustindex verifies that the original source of the review is Google.
Initial impressions : i was dubious of ordering after seeing some of the negative reviews, but equally amused by trade insulation replies....... i was looking at reviews because i'd never heard of the business, but after reading the reviews it became clear that actually the place was not a scam, the goods were arriving however people had not paid attention to tickboxes at checkout or were expecting craned deliveries (again not reading checkout\terms) and leaving their mrs at home to accept the orders i ordered 50mm celotex, and rwa45 insulation it's all arrived on the day they said it would yes i needed to help unload it, but guess what, i ordered it to use it so i fully intended to be handling it anyway and not only that even if i didn't need to help i would have had to move it anyway as they would have just done a kerbside delivery driver was great, he asked if i was comfortable in lifting the pallet of pir off in one go, (if you're not you're an adult, simply say no and open the pack) basically it came from travis perkins and i imagine it will come via other major suppliers too much like most of the online companies..... but because these guys order such large quantities they can pass on the discount and they're responsible for dealing with the the like of the tp if there's an issue summary : Yes i would recommend and yes i will order again
David Marsden
David Marsden
2024-07-07
Trustindex verifies that the original source of the review is Google.
My materials were delivered within the specified delivery window. The delivery guy was very skilled at navigating our driveway and he dropped the materials right at our front door. Iā€™m delighted with the quality of materials and service and I will reorder from Trade Insulations Ltd at the next stage of my renovation.
Piotr Sedecki
Piotr Sedecki
2024-07-04
Trustindex verifies that the original source of the review is Google.
Great service. Arrived on time. Very helpful delivery gentelman. Highly recommend.
ian kiddle
ian kiddle
2024-07-04
Trustindex verifies that the original source of the review is Google.
Good product delivered quickly at a competitive price
*M *
*M *
2024-07-04
Trustindex verifies that the original source of the review is Google.
Recommended supplier! I found Trade Insulations easy to deal with, contactable, transparent on pricing and delivery schedules. Saved to my Favourites!

Celotex 50mm Cavity Wall Insulation

Celotex 50mm Cavity Wall Insulation Board are 1200mm x 450mm in size. The 50mm Celotex Cavity Wall Boards are 50mm in thickness and are for use in cavity walls. The product code for the Celotex 50mm Cavity wall board is CW4050 and forms a part of the CW4000 range. Celotex cavity wall insulation boards are made from Polyisocyanurate, which is popularly known as PIR. This product features low emissivity foil facings on both sides to enhance thermal performance in sealed cavity air spaces. In addition to this, the CW4050 Board boasts a thermal conductivity of 0.022w/mK.

Celotex is a household name within the insulation industry. They are constantly improving their products and processes. Moreover, Celotex 50mm Cavity Wall Insulation Boards boast superior performance in partial fill cavity wall applications.

When it comes to sustainability, Celotex is on top of its game. Their Cavity Wall Boards are manufactured using a blend of blowing agents with zero ozone depletion potential (zero ODP) and low global warming potential (GWP). This means that the product itself is made in a way that reduces the impact on the planet. In addition to this, the installation of the Celotex Cavity Boards means that more heat can be retained in homes, which reduces the need for excessive energy usage to keep a house warm. In summary, Celotex Cavity Wall boards are great for the planet from manufacturing to the benefits of the installation.

Key Features of the Celotex CW4000 Range

  • Celotex 50mm Cavity Wall Boards are lightweight
  • They have great thermal performance
  • They are both sustainable and energy efficient
  • CW4000 boards are reliable and durable
  • Celotex Cavity Wall Boards are water repellent
  • The CW4000 Boards easy to install
  • They are free from harmful gases (CFC and HCFC)
  • They do not add to the formation of any gases with Ozone Depletion Potential (ODP) or Global Warming Potential (GWP)

Other advantages of 50mm Celotex Cavity Wall Insulation Boards are that they are able to conveniently fit in between cavity wall ties through cavity ties clips. In addition to this, the 50mm CW4050 offers long-lasting energy savings when installed. The aluminium foil faces allow for enhanced thermal performance. The board itself has exemplary dimenstional stability. Furthermore, CW4050 achieves a BBA (British Board of Agrement) and BRE (Building Research Establishment) Green Guide Rating of A. This means the installation of Celotex’s Cavity Wall Boards can help upgrade environmental performance.

50mm Celotex Cavity Wall Board Application

Celotex Cavity Wall Boards are designed for use in partial fill, masonry cavity wall applications. The product itself is specifically made to fit between cavity wall ties. 50mm Celotex Cavity Wall boards are 50mm in thickness. Cutting the board is not required as it fits standard wall tie spacing requirements. This cuts down installation times and therefore makes it a great solution to traditional methods.

50mm Celotex Cavity Wall Insulation Boards are tongue and grooved and are lightweight and easy to install.

The Celotex CW4000 range is long-lasting and extremely durable. When storing 50mm Celotex Cavity Wall Insulation, we recommend that you store the PIR board inside. Furthermore, this is to prevent the effects of weathering. If there is no other option but to store the cavity wall boards outside then keep them raised from the ground to avoid ground moisture. The 50mm Celotex Cavity Boards should be kept out of direct sunlight. If outside, this means they should be either under cover or protected with opaque polythene sheets. Furthermore, adverse weather effects could damage the board and affect performance so correct storage is appropriate. It is also worth noting that all of our CW4050 Cavity Wall boards are brand new. As a dedicated seller of insulation, we are able to offer our best price on 50mm Celotex Cavity Wall Insulation.

Celotex Cavity Wall Board Certifications

  • Euroclass E Reaction to Fire classification, according to BS EN 13501-1
  • A+ rating in comparison to the BRE Green Guide 2008
  • CE marking complying with BS EN 13165:2001
  • BS EN ISO 9001:2000 and quality management systems
  • Environmental Management System ā€“ ISO 14001:2015

Dimensions 1200 × 450 mm
Brand

Celotex

Thickness

50mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

11

Sales Unit

Board

Unit Coverage

5.94m2

Manufacturers Reference

CW4050

Thermal Conductivity

0.022W/mK

Density

31.5kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

1.92kg/m2

Product Range

Celotex Cavity Wall Board (CW4000)

Dimensions 1200 × 450 mm
Brand

Celotex

Thickness

50mm

Material Type

Polyisocyanurate (PIR)

Pieces Per Pack

11

Sales Unit

Board

Unit Coverage

5.94m2

Manufacturers Reference

CW4050

Thermal Conductivity

0.022W/mK

Density

31.5kg/m3

Fire Rating

Euroclass F

Edge Type

Square

Facing

Low Emissivity Foil

Weight (kg/m2)

1.92kg/m2

Product Range

Celotex Cavity Wall Board (CW4000)

12 reviews for Celotex CW4050 50mm Cavity Wall Board (1200mm x 450mm) – 5.94m2 pack

  1. Nathan

    orderd for my partner, the boards are perfect! Thx

  2. George

    Got my delivery within 6 days, brilliant

  3. Alan

    Used this insulation in my basement, really impressed.

  4. Brody

    Outstanding insulation, worth every penny

  5. Anthony

    really good, the pack actually covers around 6.2m2 very happy

  6. james martin

    Used for a new build out house as limited on space, worked well!

  7. Francis Leeds

    Great price for a sheet of 50mm!

  8. Rocket Builders (Jason)

    Very happy with my 50mm celotex cavity boards – we usually use the bigger sheets but we couldn’t use them this time round.

  9. Smithy

    Not a bad price my builders merchant said could match the price but had to wait 6 weeks.

  10. Billie Willows

    Fab service

  11. Omar W

    Celotex is always my go to.

  12. Gregory

    Got delivered in 2 days. Really impressed.

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Celotex is a leading manufacturer of insulation products. Celotex is a part of the Saint-Gobain Insulation UK group and has been innovating the insulation market since 1925. Celotex provides a large range of insulation solutions from plasterboard to PIR insulation boards.They provide a variety of solutions for different market sectors and also applications.Saint-Gobain believes in creating great living places and improving daily life. They have good technical support and are a trusted name in the business.At Trade Insulations, we offer the best prices on Celotex board.

Celotex CW4000 Datasheet

CW4000 BBA Certification

CW4000 Declaration Of Performance

Celotex Safety Datasheet

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