The Celotex Thermaclass Cavity Wall 21 Board 1190 x 450 x 90mm (L x W x T) is an easy to install polyisocyanurate (PIR) insulation board that has a high thermal performance with a thermal conductivity of 0.021 W/m.K. Suitable for full fill cavity wall applications, it can be installed with up to a 10mm residual cavity or as a full fill solution with no residual cavity. The board has a low emissivity foil facing to each side and features an engineered tongue and groove joint profile, helping to ensure a continuous layer of insulation to maximise thermal performance as well as providing protection from wind driven rain.
Celotex Thermaclass Cavity Wall 21 Board 1.19m x 450 x 90mm
- Lightweight
- Tongue and groove edge profile
- Low emissivity foil facing
- BBA approved – certificate 16/5343 (Full Fill Cavity Walls)
- Reaction to Fire: Euroclass E Reaction to Fire classification, according to EN 13501-1
The Celotex Thermaclass Cavity Wall 21 Board 1190 x 450 x 90mm (L x W x T) is an easy to install polyisocyanurate (PIR) insulation board that has a high thermal performance with a thermal conductivity of 0.021 W/m.K. Suitable for full fill cavity wall applications, it can be installed with up to a 10mm residual cavity or as a full fill solution with no residual cavity. The board has a low emissivity foil facing to each side and features an engineered tongue and groove joint profile, helping to ensure a continuous layer of insulation to maximise thermal performance as well as providing protection from wind driven rain.
- Lightweight
- Tongue and groove edge profile
- Low emissivity foil facing
- BBA approved – certificate 16/5343 (Full Fill Cavity Walls)
- Reaction to Fire: Euroclass E Reaction to Fire classification, according to EN 13501-1
| Product Name | Celotex Thermaclass Cavity Wall 21 Board 1.19m x 450 x 90mm | 
| Brand | Thermaclass | 
| Manufacturer Name | Soprema | 
| Manufacturer Part Number | TC1090 | 
| EAN | 5060489710963 | 
| Compliance Approvals | BBA Approved | 
| Warranty Period | 12 months | 
| Materials | Polyisocyanurate | 
| Commercial Or Domestic Use | Both | 
| Range | PIR Insulation Board | 
| Model Number | TC1090 | 
| Application | Interior | 
| Pack Quantity | 1 | 
| Applicable Standards | ISO 9001 | 
| Coverage | 0.5355 m2 | 
| Recyclable | Yes | 
| Renewable | No | 
| Product Width | 450 mm | 
| Product Weight | 2.8 kg/m2 | 
| Product Length | 1190 mm | 
| Thickness | 90 mm | 
| Thermal Conductivity | 0.021 W/mK | 
| R Value | 4.25 m2K/W | 
| Next Day Delivery | Next day delivery if ordered by 10am (subject to availability and location). | Delivery online is only available for orders over £100 (ex VAT)* Jewson Cash/Credit Account customers: Delivery online is free* Non-Jewson account customers: Delivery is free for orders over £200 (ex VAT), orders between £100-£200 (ex VAT) incur £40 (ex VAT) delivery fee* *Excluding Tool Hire and non-standard delivery areas. | 
| Click & Collect | Collect in 15 minutes (subject to availability and location) |