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View Product Reviews50mm Celotex CW4050 Cavity Wall Insulation Board 1200mm x 450mm (5.94m2/Pack)
| 10+ packs | 15+ packs | 20+ packs |
| £47.94ex. VAT | £47.70ex. VAT | £47.47ex. VAT |
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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.
Standard (Nationwide) Delivery
| 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) |
||
| 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.
Returns
We offer a 30 day returns policy on any faulty products.
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
| 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: | 11.4kg |
| 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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