90mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 6)

90mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 6)
Price: £99.30 (£119.16 inc VAT)
Price per m2: £30.65/m2 (£36.78 inc VAT)
- Product Code: A1-4775
- Delivery Time: 2 - 4 days
- Brand: Celotex (Tech. support: 01473820850)
- Model and Size: 1190x450mm - 3.24m2
- Weight: 9.07kg
Our ratings on 25-04-2025:

4.7 out of 5 - Excellent


4.8 out of 5
90mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 6)
Width: 450mm
Length: 1190mm
Pack Quantity: 6
Weight/m2: 2.8kg
Weight: 9.07kg
Thermal Conductivity: 0.021W/mK
R-Value: 4.25m2K/W
Fire Rating (Reaction to Fire): E
90mm 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 solution with no residual cavity. Celotex Thermaclass Cavity Wall 21 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).
APPLICATION
- Full fill cavity insulation,
- Can be installed with up to a 10mm residual cavity
CHARACTERISTICS
- Excellent thermal performance,
- Lightweight and easy to install,
- Tongue and groove for easy installation,
- The boards are sized to fit standard cavity wall tie spacing,
- Can be used up to 18 metres height (England and Wales),
- 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
- BBA certified,
- Euroclass E Reaction to Fire classification, according to BS EN 13501-1,
- Manufactured under Environmental Management System ISO 14001:2015,
Brand: Unilin (prev. Xtratherm)
Model and Size: 1200mm x 450mm - 2.16m2
Delivery Time: 1-3 working days
100mm Unilin CavityTherm wall insulation board is a high performance composite board of enhanced PIR core with a lambda value of 0.021W/mK. The boards have gas tight facings with one face bonded to a profiled HIPS skin during manufacture to provide a drainage plane. Unilin CavityTherm's unique ..
Guide Price: £107.54
£129.05 inc VAT
Brand: Iko
Model and Size: 1200mm x 2400mm - 11.52m2
Delivery Time: 2 - 3 working days
90mm 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: 2400x1200mm - 63.36m2
Delivery Time: Out Of Stock
110mm Celotex Crown-Fix is a brand new product for use in flat roof systems. Representing the next phase of Celotex innovation, Crown-Fix is a high performance rigid polyisocyanurate (PIR) insulation which delivers excellent dimensional stability and added robustness in a mechanically fixed sin..
Guide Price: £2,298.18
£2,757.82 inc VAT
Brand: Celotex
Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
Celotex TB4025 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..
£16.68
£20.02 inc VAT
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: Celotex GS5025 - 74.88m2
Delivery Time: 1 - 5 working days
Celotex GS5025 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: £2,079.99
£2,495.99 inc VAT
Brand: Celotex
Model and Size: 1200x2400 - 34.56m2
Delivery Time: 3 - 5 days
100mm Celotex TA4000 PIR Insulation Board (pack of 12)
Size: 1200mm x 2400mm
Area per pack: 34.56m2
Thermal conductivity: 0.022 W/Mk
R-Value: 4.50m2K/W
Compressive strength: ≥150kPa
Water vapour resistance: >150 MNs/g
Weight: 3.41kg/m2
Celotex TA4000 pro..
Brand: Celotex
Model and Size: 2400x1200mm - 2.88m2
Delivery Time: 1-3 working days
60mm Celotex GA4060 is a multi-purpose insulation board that provides a solution to overcome localized thermal bridges. Featuring a low emissivity foil facings, this board has been manufactured from tough polyisocyanurate (PIR) using a perfect mix of certain blowing agents which have zero ozone depl..
£29.50
£35.40 inc VAT