Celotex
Celotex CW4000 Cavity Wall Insulation Board 450mm x 1200mm - All Sizes
Celotex CW4000 Cavity Wall Insulation Board 450mm x 1200mm - All Sizes
SKU:celcav40
Est Delivery between 6th Feb and
12th Feb.
The option you have selected may be in short supply. To make an enquiry please call us on 020-3936-2839 or email us at sales@i4lgroup.co.uk.
How much will I need?
We recommend adding 10% of additional product to the calculation to account for errors, damages, and obstacles in your project


Product Information
Thickness | Sheets Per Pack | Pack Coverage |
---|---|---|
40mm | 14 | 7.56m2 |
50mm | 11 | 5.94m2 |
60mm | 10 | 5.4m2 |
75mm | 8 | 4.32m2 |
85mm | 7 | 3.78m2 |
100mm | 6 | 3.24m2 |
The Celotex Cavitywall is perfect for superior performance thermal insulation in application of partial fill cavity wall insulation. It includes a polyisocyanurate rigid foam and insulation core, along with a thermal conductivity that comes out to be 0.022 W/mK. There are also aluminium foil facings with low emissivity at both the sides. This is formed through a rigid polyisocyanurate (PIR) through a blend of blowing agents with low global warming potential (GWP) and zero ozone depletion potential (zero ODP).
Key Features
- Size of Board: 1200 x 450 mm
- Compressive strength: 120kPa
- Water vapour resistance: Greater than 150MNs/g
- Dimensional stability: DS (TH) 8
Advantages
- Conveniently fits in between cavity wall ties through cavity ties clips
- Clips offer Retention
- Gives long lasting reliable energy savings for all buildings
- Foil facers with low emissivity provide improved thermal insulation along with cavity walls air spaces
- Exemplary dimensional stability
Certification
- The insulation component of this Celotex is given an A+ rating in comparison to the BRE Green Guide 2008
- This got CE marking complying with BS EN 13165:2001
- This is CFC/HCFC free that means zero ozone depletion potential (ODP) along with low global warming potential (GWP)
- This is formed in accordance with BS EN ISO 9001:2000 and quality management systems by Celotex Limited
Celotex CW4000 range in cavity wall insulation is versatile insulation used in cavity wall and internal walls. Get long lasting, reliable energy savings.
Celotex CW4000 Cavity Wall Insulation
Wish to cut down the amount of heat lost from your home, lower your heating bills and reduce your carbon footprint? Celotex CW4000 insulation boards are a versatile insulation material with polyisocyanurate rigid foam and insulation core, along with excellent thermal conductivity and aluminium foil facings for an improved thermal insulation, cavity wall insulation sound proofing and zero CO2 emission. Lightweight, durable and easy to install, the boards provide reliable long-term energy savings for buildings.
Switch to Celotex CW4000 cavity wall insulation. Browse through insulation4less.co.uk to grab the best deals. We offer a brilliant price proposal on all Celotex cavity wall insulation materials. Each item is available at discounted rates, throughout the year. Celotex CW4000 sheets are 1.2m x 0.45m and come in packs. Each pack will carry a different amount of sheets depending on the thickness of the cavity wall insulation you require.
Frequently Asked Questions
What are the key features of Celotex CW4000 Cavity Wall Insulation? The key features include board size of 1200 x 450 mm, compressive strength of 120kPa, water vapor resistance greater than 150MNs/g, and exemplary dimensional stability (DS (TH) 8).
What is the thermal conductivity of Celotex CW4000 Cavity Wall Insulation? The thermal conductivity of Celotex CW4000 insulation is 0.022 W/mK, providing superior thermal insulation properties.
How does Celotex CW4000 achieve energy savings? Celotex CW4000 insulation boards offer long-lasting reliable energy savings by reducing heat loss, lowering heating bills, and contributing to lower carbon footprint.
What are the advantages of using Celotex CW4000 Cavity Wall Insulation? The advantages include easy fitting between cavity wall ties using cavity ties clips, excellent dimensional stability, improved thermal insulation with low emissivity foil facers, and certifications for environmental sustainability and quality standards.
Can Celotex CW4000 be used for internal walls as well? While Celotex CW4000 is primarily designed for cavity walls, it can also be used effectively for internal walls to improve thermal insulation and energy efficiency.
Is Celotex CW4000 environmentally friendly? Yes, Celotex CW4000 insulation is CFC/HCFC-free, has zero ozone depletion potential (ODP), and features blowing agents with low global warming potential (GWP), making it environmentally sustainable.
What certifications does Celotex CW4000 Cavity Wall Insulation have? Celotex CW4000 insulation holds certifications such as an A+ rating in the BRE Green Guide 2008, CE marking complying with BS EN 13165:2001, and production in accordance with BS EN ISO 9001:2000 for quality management.
Where can I purchase Celotex CW4000 Cavity Wall Insulation? You can purchase Celotex CW4000 insulation from authorized retailers and suppliers like insulation4less.co.uk, where you can find competitive prices and deals on Celotex insulation materials.
How are Celotex CW4000 sheets packaged and sold? Celotex CW4000 sheets come in packs with varying quantities depending on the thickness required for cavity wall insulation.
Technical Specifications
Brand | Celotex |
Length | 1200mm |
Material type | Polyiso |
Thermal conductivity | 0.022 W/mK |
Width | 450mm |
Datasheets
Delivery Information
Est Delivery between 6th Feb and
12th Feb.


Delivery will always take place on a weekday (Mon - Fri).
An exact delivery charge will be calculated at checkout based on your order.