Celotex CW4000 partial fill cavity wall board Celotex Insulation

Celotex CW4000

High performance rigid Polyisocyanurate (PIR) partial fill cavity wall insulation board

Comes in conveniently sized boards for installation between cavity wall ties.

Includes low emissivity foil facings giving improved thermal insulation performance within cavity air spaces.

Can be used to provide energy performance of new and existing buildings.

BBA certified.

Provides reliable long term energy savings for buildings.

Thicknesses and Availability:

Available in most popular thicknesses at most depots; short lead-times may apply if we need to get stock in before delivering to site.

This CW4000 Range includes the following available product thicknesses: 40mm, 60mm, 70mm, 75mm, 80mm, 90mm and 100mm.

Due to supply challenges from the manufacturers, please allow extended lead times on all PIR boards. In some cases we may need to supply products from an alternate manufacturer - as a rule of thumb, Recticel and Kingspan are generally the most readily available in most geographic locations. Please feel free to Contact Me to check availability and lead times.

Product Information

General information about Celotex CW4000

Product Application

General application insulating board

Celotex's high performance polyisocyanurate (PIR) foam board, CW4000, is suitable for use in partial fill cavity wall applications with a minimum 50mm residual cavity.

Product Make-up

Core

Celotex CW4000 is manufactured from rigid polyisocyanurate (PIR) using a blowing agent that has zero ozone depletion potential (zero ODP) and low global warming potential (GWP)

Facings

Faced on both sides with a low emissivity aluminium foil, autohesively bonded to the insulation core during manufacture

Product Properties

Thermal Conductivity 0.022 W/m·K
Compressive Strength 120 kPa at 10% compression BS EN 826:2013
Board Length 1.2m
Board Width 0.45m
Board Edge Square
Vapour Resistance > 300 MNs/gm

Product Prices

Buy Celotex CW4000

The prices and quantity discounts below are 'per pack' rates. Packs contain multiple boards... 10 x 0.6x1.2m = 7.2m² - in this instance, there are 10 x boards in a pack where each board is 0.6m x 1.2m providing a total coverage of 7.2m² per pack.

Less popular product commonly available at selected depots. Celotex CW4050 50mm, 11 x 0.45x1.2m = 5.94m² - ranging from £9.58 to £10.02 per m²

1 plus packs @ £10.02 per m² / £5.41 per board = £59.54 (£71.45 inc-VAT) per pack
5 plus packs @ £9.94 per m² / £5.37 per board = £59.02 (£70.82 inc-VAT) per pack
9 plus packs @ £9.85 per m² / £5.32 per board = £58.49 (£70.19 inc-VAT) per pack
13 plus packs @ £9.76 per m² / £5.27 per board = £57.96 (£69.55 inc-VAT) per pack
17 plus packs @ £9.67 per m² / £5.22 per board = £57.44 (£68.93 inc-VAT) per pack
21 plus packs @ £9.58 per m² / £5.17 per board = £56.91 (£68.29 inc-VAT) per pack

Rarely requested product sourced directly from manufacturer. Celotex CW4060 60mm, 10 x 0.45x1.2m = 5.4m² - ranging from £10.79 to £11.29 per m²

1 plus packs @ £11.29 per m² / £6.10 per board = £60.97 (£73.16 inc-VAT) per pack
5 plus packs @ £11.19 per m² / £6.04 per board = £60.43 (£72.52 inc-VAT) per pack
9 plus packs @ £11.09 per m² / £5.99 per board = £59.89 (£71.87 inc-VAT) per pack
13 plus packs @ £10.99 per m² / £5.94 per board = £59.35 (£71.22 inc-VAT) per pack
17 plus packs @ £10.89 per m² / £5.88 per board = £58.81 (£70.57 inc-VAT) per pack
21 plus packs @ £10.79 per m² / £5.83 per board = £58.27 (£69.92 inc-VAT) per pack

Less popular product commonly available at selected depots. Celotex CW4075 75mm, 8 x 0.45x1.2m = 4.32m² - ranging from £14.18 to £14.84 per m²

1 plus packs @ £14.84 per m² / £8.01 per board = £64.11 (£76.93 inc-VAT) per pack
5 plus packs @ £14.71 per m² / £7.94 per board = £63.54 (£76.25 inc-VAT) per pack
9 plus packs @ £14.58 per m² / £7.87 per board = £62.98 (£75.58 inc-VAT) per pack
13 plus packs @ £14.45 per m² / £7.80 per board = £62.41 (£74.89 inc-VAT) per pack
17 plus packs @ £14.31 per m² / £7.73 per board = £61.84 (£74.21 inc-VAT) per pack
21 plus packs @ £14.18 per m² / £7.66 per board = £61.27 (£73.52 inc-VAT) per pack

Rarely requested product sourced directly, possibly manufactured to order. Celotex CW4100 100mm, 6 x 0.45x1.2m = 3.24m² - ranging from £16.87 to £17.65 per m²

1 plus packs @ £17.65 per m² / £9.53 per board = £57.19 (£68.63 inc-VAT) per pack
5 plus packs @ £17.50 per m² / £9.45 per board = £56.69 (£68.03 inc-VAT) per pack
9 plus packs @ £17.34 per m² / £9.36 per board = £56.18 (£67.42 inc-VAT) per pack
13 plus packs @ £17.19 per m² / £9.28 per board = £55.68 (£66.82 inc-VAT) per pack
17 plus packs @ £17.03 per m² / £9.20 per board = £55.17 (£66.20 inc-VAT) per pack
21 plus packs @ £16.87 per m² / £9.11 per board = £54.66 (£65.59 inc-VAT) per pack

Less popular product commonly available at selected depots. Bostik Idenden T303 tape, 100mm x 50m = 50lm - ranging from £0.13 to £0.14 per lm

1 plus rolls @ £0.14 per lm = £6.78 (£8.14 inc-VAT) per roll
5 plus rolls @ £0.13 per lm = £6.72 (£8.06 inc-VAT) per roll
10 plus rolls @ £0.13 per lm = £6.66 (£7.99 inc-VAT) per roll
15 plus rolls @ £0.13 per lm = £6.60 (£7.92 inc-VAT) per roll
20 plus rolls @ £0.13 per lm = £6.54 (£7.85 inc-VAT) per roll
25 plus rolls @ £0.13 per lm = £6.48 (£7.78 inc-VAT) per roll

Reasonable stock levels are generally held at most of our depots. In some geographic locations, depots may stock alternates, however, we will contact you to discuss before proceeding with the order.

Where products need to be brought in from Celotex, please allow approx. 1 week for delivery.

Celotex reserves the right to change stocked products - while we will do all we can to keep on top of changes, availability and lead times my vary.

Please observe the 'Star Rating' indicators to assess availability.
Product Availability Excellent Generally 1 or 2 days for delivery
Product Availability Good Generally 1 to 5 days for delivery
Product Availability Fair Generally 5 to 10 days for delivery
Product Availability Poor Generally 5 to 15 days for delivery
Product Availability Undetermined Please call to check availability and approximate lead times

Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations


Product Performance and Guides

Product Performance, Manufacturer Certification, Downloads, and Installation Guides

Thermal Resistance

While we have provided Thermal Resistance values for all thicknesses on the Celotex CW4000 datasheet, some thicknesses may not be readily available.

Items highlighted in green are generally held in stock by Celotex.

Product Thickness Thermal Resistance kg/m²
Celotex CW4040 40mm 40mm 1.80 m²K/W 1.41 kg/m²
Celotex CW4050 50mm 50mm 2.25 m²K/W 1.92 kg/m²
Celotex CW4060 60mm 60mm 2.70 m²K/W 2.26 kg/m²
Celotex CW4075 75mm 75mm 3.40 m²K/W 2.78 kg/m²
Celotex CW4085 85mm 85mm 3.85 m²K/W 3.13 kg/m²
Celotex CW4100 100mm 100mm 4.50 m²K/W 3.65 kg/m²

Standards & Approval

Celotex CW4000 is CFC/HCFC free with zero ODP, low GWP and CE marking. Celotex CW4000 is manufactured in accordance with quality management system ISO 9001 and environmental management system ISO 14001. All products must be installed in accordance with guidance issued by Celotex.

Where building regulation approval is required, you should take advice from your local building control authority and the building designer.

Minimum order level - £175.00 ex-VAT. For further details on Delivery Charges and Minimum Order levels, please Click Here