140mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 4)
Guide Price
140mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 4)
Guide Price: £112.76 (£135.31 inc VAT)
Price per m2: £52.20/m2 (£62.64 inc VAT)
- Product Code: A1-4777
- Delivery Time: up to 7 days
- Brand: Celotex (Tech. support: 01473820850)
- Model and Size: 1190x450mm - 2.16m2
- Weight: 9.29kg
Our ratings on 27-09-2025:
4.8 out of 5
Brand: Iko
Model and Size: 1200mm x 2400mm - 8.64m2
Delivery Time: 2 - 3 working days
140mm 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, ..
Celotex_Thermaclass_Cavity_Wall_21_Install_Guide.pdf
Brand: Celotex
Model and Size: 2400x1200mm - 2.88m2
Delivery Time: 1-3 working days
Celotex XR4140 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. XR4140 is also appropriate for use in floors and walls. With low emissivity foil facings, XR4140 is ma..
£65.16
£78.19 inc VAT
Guide Price
Brand: Celotex
Model and Size: 1190x450mm - 2.16m2
Delivery Time: up to 7 days
140mm Celotex Thermaclass Cavity Wall 21 is a high performance rigid PIR full fill cavity insulation board with low emissivity foil facings offering enhanced thermal performance (0.021 W/m.K) within cavity air spaces. It can be installed with up to a 10mm residual cavity or as a full fill solu..
Guide Price: £112.76
£135.31 inc VAT
Guide Price
Brand: Celotex
Model and Size: 1200x600mm - 43.20m2
Delivery Time: Out Of Stock
120mm Celotex Crown-Up is a brand new product for use in flat roof systems. Representing the next phase of Celotex innovation, Crown-Up is a high performance rigid polyisocyanurate (PIR) insulation which delivers increased dimensional stability and added robustness in a built-up flat roofing sy..
Guide Price: £1,548.09
£1,857.71 inc VAT
Brand: Celotex
Model and Size: FF4000 1200x2400 - 69.12m2
Delivery Time: 3 - 5 days
50mm Celotex FF4000 Underfloor Heating Board (pack of 24)
Size: 1200mm x 2400mm
Area per pack: 69.12m2
Thermal conductivity: 0.022 W/Mk
R-Value: 2.25m2K/W
Compressive strength: ≥150kPa
Water vapour resistance: >150 MNs/g
Weight: 1.81kg/m2
Celotex FF..
Guide Price
Brand: Celotex
Model and Size: Celotex GS5040 - 63.36m2
Delivery Time: 1 - 5 working days
Celotex GS5040 is a premium performance PIR insulation board faced with low emissivity aluminum foils on both sides and bonded to 9.5 mm tapered edge plasterboard, providing an insulation product and a plasterboard in one. The product is designed for mechanically fixed applicatio..
Guide Price: £1,942.86
£2,331.43 inc VAT
Guide Price
Brand: Celotex
Model and Size: 1200mm x 450mm - 4.32m2
Delivery Time: 1 - 5 working days
60mm 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 rigi..
Guide Price: £68.79
£82.55 inc VAT