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Celotex TB4000 PIR Insulation Board 30mm (2.88m²)
SKU: 227259
Product Description
Celotex TB4000 is a rigid PIR thermal insulation board with low emissivity foil facings, supplied in 20–40 mm thicknesses for floor, wall and roof applications.
Celotex TB4000 is a multi-purpose rigid polyisocyanurate (PIR) insulation board with low emissivity foil facings for use in floor, wall and roof constructions. Lightweight 2400 x 1200 mm boards offer good thermal performance with a declared thermal conductivity of 0.022 W/m·K, helping to achieve compliant U-values with reduced insulation thickness.
The board is covered by third-party BBA certification for defined applications and manufactured under quality and environmental management systems aligned with EN ISO 9001 and EN ISO 14001.
- Lightweight 2400 x 1200 mm PIR insulation boards.
- Low emissivity foil facings on both sides.
- Declared thermal conductivity 0.022 W/m·K.
- Suitable for floor, wall and roof applications.
- Supported by BBA certification for specified uses.
Typical applications
Pitched roofs (between and under rafters or joists); Flat roofs (between and under joists, balconies and terraces where appropriate); External walls (cavity wall upgrades, timber frame walls, solid walls); Ground floors (beam and block floors, concrete slab floors, upgrading existing slabs, suspended timber floors).
Key considerations
Check national and local Building Regulations and guidance for fire performance, moisture control and use in specific constructions; Do not use Celotex TB4000 in external walls of buildings over 11 m in height; Always follow the guidance in the product datasheet, Declaration of Performance, safety data sheet and BBA certificates when designing and installing the product.
Product Specification
| Applications | Pitched roofs (between and under rafters or joists); Flat roofs (between and under joists, balconies and terraces where appropriate); External walls (cavity wall upgrades, timber frame walls, solid walls); Ground floors (beam and block floors, concrete slab floors, upgrading existing slabs, suspended timber floors). |
| Brand | Celotex |
| Length (mm) | 2400 |
| Material | Polyisocyanurate (PIR) |
| Range | TB4000 |
| Thickness (mm) | 30 |
| Width (mm) | 1200 |
| Manufacturer Product Page | Celotex Product Page |
| MPN | TB4030 |
| Pack Coverage (m²) | 28.799999999999997 |
| Pack Qty. (units) | 10 |
| Thermal Resistance R Value (m²K/W) | 1.35 |
| Unit Coverage (m²) | 2.88 |
| Format | Board |
| Reaction to Fire | Euroclass F to BS EN 13501-1 |
| Selling Unit | Board |
| Standards & Certifications | EN 13165:2012+A2:2016 factory made rigid polyurethane foam products; BS EN 13501-1 Euroclass F reaction to fire; BBA certificates 25/7318 and 25/7329 for defined applications; UKCA marked; EN ISO 9001 quality management; EN ISO 14001 environmental management. |
| Thermal Conductivity (W/mK) | 0.022 |
| Boards per Stack | 80 |
| Stack Coverage (m²) | 230.4 |
| Dimensional Stability Class (text) | DS(70,90)3; DS(-20,-)1 |
| Thickness Tolerance Class (text) | T2 |
| Height Restriction (m) | 11 |
| Availability | In Stock |