85mm Celotex CW4085 - Rigid PIR Cavity Insulation Board (pack of 7) CW4000

Guide Price
85mm Celotex CW4085 - Rigid PIR Cavity Insulation Board (pack of 7) CW4000
Guide Price: £89.94 (£107.93 inc VAT)
Price per m2: £23.79/m2 (£28.55 inc VAT)
- Product Code: A1-166
- Delivery Time: 1 - 5 working days
- Brand: Celotex (Tech. support: 01473820850)
- Model and Size: 1200mm x 450mm - 3.78m2
- Weight: 10.12kg
Our ratings on 30-05-2025:

4.8 out of 5
85mm Celotex CW4085 - Rigid PIR Cavity Insulation Board (pack of 7) CW4000
Width: 450mm
Length: 1200mm
Density: 31.5kg/m3
Weight/m2: 2.68kg
Weight: 10.12kg
Thermal Conductivity: 0.023W/mK
R-Value: 3.85m2K/W
Compressive Strength: 120kPa
85mm Celotex CW4000 is an insulation board aimed specifically at partial fill cavity wall applications. It comprises a polyisocyanurate rigid foam insulation core, with a thermal conductivity of 0.022 W/mK and low emissivity aluminium foil facings on both sides. CW4000 is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP).
Note: Would be known as CW3000 from January 2018.
APPLICATION
Celotex CW4000 is specifically for use in partial-fill cavity wall applications.
CHARACTERISTICS
- Is easy to fit between wall ties using cavity tie clips for retention
- Comes in thicknesses ranging from 25mm-100mm
- 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
- Has excellent dimensional stability
- Provides reliable long term energy savings for buildings
CERTIFICATION
- The insulation component of Celotex CW4000 is A+ rated when compared to the BRE Green Guide 2008
- Celotex CW4000 is CFC/HCFC free with zero ozone depletion potential (ODP) and low global warming potential (GWP)
- Celotex CW4000 received CE marking compliance to BS EN 13165:2001
- The board is manufactured in accordance with quality management systems with BS EN ISO 9001:2000 by Celotex Limited
Brand: Iko
Model and Size: 1200mm x 2400mm - 14.40m2
Delivery Time: 2 - 3 working days
85mm IKO Enertherm ALU PIR Rigid Insulation Board is a versatile insulation board with a rigid polyisocyanurate (PIR) foam core, clad on both sides with reflective aluminium. The seven-layer gas-tight aluminium lamination enhances resistance to fire and water ingress. It’s made without CFC, HCFC, o..
Brand: Celotex
Model and Size: FF4000 1200x2400 - 40.32m2
Delivery Time: 3 - 5 days
85mm Celotex FF4000 Underfloor Heating Board (pack of 14) | FF 4085
Size: 1200mm x 2400mm
Area per pack: 40.32m2
Thermal conductivity: 0.022 W/Mk
R-Value: 3.85m2K/W
Compressive strength: ≥150kPa
Water vapour resistance: >150 MNs/g
Weight: 2.93kg/m2
&..
Brand: Celotex
Model and Size: FF4000 1200x2400 - 51.84m2
Delivery Time: 3 - 5 days
125mm Celotex FF4000 Underfloor Heating Board (pack of 9) | FF 4125
Size: 1200mm x 2400mm
Area per pack: 25.92m2
Thermal conductivity: 0.022 W/Mk
R-Value: 5.65m2K/W
Compressive strength: ≥150kPa
Water vapour resistance: >150 MNs/g
Weight: 4.21kg/m2
&..
Brand: Celotex
Model and Size: 2400x1200mm - 2.88m2
Delivery Time: 1-3 working days
Celotex XR4130 is targeted at cut-to-fit applications between rafters or joists and enables users to achieve lower U-values with a single layer of insulation than has previously been possible. XR4130 is also appropriate for use in floors and walls. With low emissivity foil facings, XR4130 is ma..
£61.93
£74.32 inc VAT
Brand: Celotex
Model and Size: EL3000 1200x600 - 3.60m2
Delivery Time: 3 - 5 days
Celotex EL3000 provides a quick and easy method of achieving effective thermal insulation in flat roofing structures. With coated glass tissue facings, EL3000 is manufactured from rigid Polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and a l..
Brand: Celotex
Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
Celotex TB4012 is targeted at cut-to-fit applications between rafters or joists and enables users to achieve lower U-values with a single layer of insulation than has previously been possible. TB4012 is also appropriate for use in floors and walls. With low emissivity foil facings, TB4012 is manufac..
Brand: Celotex
Model and Size: TD4000 - 2400 x 1200
Delivery Time: 1 - 5 working days
Celotex TD4000 comprises a polyisocyanurate rigid foam insulation core, with a thermal conductivity of 0.022 W/mK, and low emissivity aluminium foil facings on both sides bonded to a layer of 5.5mm WBP exterior grade plywood.
APPLICATION
Celotex TD4000 is purpose designed for use in ligh..