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 24-04-2025:

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: 1200x2400mm - 46.08m2
Delivery Time: Out Of Stock
Celotex FR5025 is one of the available dimensions of the Celotex FR5000 PIR insulation boards made from polyisocyanurate rigid core and faced on both side with low emissivity aluminum foils for improved thermal performance. The product is applicable to different types of constructions incl..
Brand: Celotex
Model and Size: 1200x2400mm - 120.96m2
Delivery Time: Out Of Stock
Celotex FR5060 is one of the available dimensions of the Celotex FR5000 PIR insulation boards made from polyisocyanurate rigid core and faced on both side with low emissivity aluminum foils for improved thermal performance. The product is applicable to different types of constructions incl..
Guide Price: £2,390.37
£2,868.44 inc VAT
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.APPLICATIONCelotex TD4000 is purpose designed for use in light traffic..
Brand: Celotex
Model and Size: 1200mm x 450mm - 2.70m2
Delivery Time: 1 - 5 working days
90mm 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..
Brand: Celotex
Model and Size: 1190x450mm - 2.7m2
Delivery Time: up to 7 days
115mm 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: £106.25
£127.50 inc VAT
Brand: Celotex
Model and Size: 1200x600mm - 51.84m2
Delivery Time: Out Of Stock
100mm 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 system...
Guide Price: £1,753.19
£2,103.83 inc VAT