20 mm thick.
BBA Agrément Certificate
Certificate type
QA Certificate
Certificate type
A high-performance PIR insulation board suitable for use in floor, wall and roof applications.
Celotex TB4000 is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing. Available in thicknesses from 20mm to 40mm, it can be considered for floor, wall and roof applications.
Product Features
Fire Classification
Euroclass E Reaction to Fire classification, according to BS EN 13501-1. Products with this level of classification are not provided with a rating for smoke emission.
Product Benefits
Key Considerations
When using Celotex TB4000, you need to satisfy yourself that use of the product meets all relevant national Building Regulations and guidance as well as local, national and other applicable standards relevant for your construction or application, including requirements in relation to fire and applicable height restrictions.
Please refer to the following product documents:
Celotex TB4000 should not be used in the external walls of buildings over 18 metres in height (England and Wales) or 11 metres in height (Scotland). Recent changes to Building Regulations mean that only non-combustible insulation or insulation of limited combustibility can be used in buildings of that height.
Color | Silver Face |
Finish | Foil |
Material | PIR |
Length | 2400 mm |
Width | 1200 mm |
Uniclass | |
CAWS | J31/10 Warm deck roof coating J31/335 Warm deck roof insulation J41/10 Reinforced bitumen membrane warm deck roof covering J42/10 Warm deck roof covering K10/125 Metal stud partition system K10/155 Wall lining system (metal studs) K10/220 Proprietary suspended ceiling system K10/30 Metal stud K10/50 Suspended ceiling system on metal framing K11/115 Battened plywood floating floor K11/125 Battened particleboard floating floor K11/135 Battened oriented strand board floating floor K11/145 Battened cement-bonded particleboard floating floor K11/20 Battened particleboard floating floor K11/215 Plywood floating floor K11/225 Particleboard floating floor K11/235 Oriented strand board floating floor K11/245 Cement bonded particleboard floating floor K11/25 Particleboard floating floor K11/55 Rigid board insulation fixed as roof sarking K11/795 Wall lining on metal framing K21/120 Battened wood flooring K21/130 Battened wood floating floor K21/140 Battened wood laminate flooring M10/290 Floating construction M10/40 Floating construction M13/260 Floating construction M13/40 Floating construction P10/140 Insulation fitted between rafters P10/15 Insulation fitted between rafters P10/170 Insulation to loft access hatches P10/190 Insulation fitted between studs P10/20 Insulation to loft access hatches P10/40 Insulation fitted betweenor to the face ofstuds |
Standard | To BS EN 13165.Declaration of Performance (DoP): CE Marked to BS EN 13165 - Certificate Number 18.DOPTB4000-01. |
Third party product certification | BRE Green Guide rating of A, Certificate number ENP413; BBA approved 16/5352 and 17/5405; ISO 9001; ISO 14001.
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Fire performance | Euroclass E Reaction to Fire classification, according to BS EN 13501-1. |
Thermal conductivity (maximum)Celotex TB4000 has a declared thermal conductivity of 0.022 W/m.K, according to BS EN 13165 for factory made rigid polyurethane foam (PU) products. | 0.022 W/m.K. |
Cross section | Uniform thickness. |
Thickness (nominal) | 20 mm. |
Face size (length x width) | 2400 x 1200 mm. |
Density | Manufacturer's standard.Consult manufacturer for details. |
Compressive strength at 10% deformation | Manufacturer's standard.Consult manufacturer for details. |
Recycled content | Manufacturer's standard. |
Facing | Foil. |
Edges | Manufacturer's standard. |
Product Reference | Celotex TB4000 |
Thermal resistance (R-value) | 0.90 m²K/W. |
Compliance with Building Regulations Part H | Helps to meet the requirements of UK thermal building regulations. |
Durability | Thermal conductivity of PIR products does not change over time. |
HandlingInformation regarding storage, installation and handling of Celotex products, or health and safety information, can be found on the manufacturer's website. | Manufacturer's standard. |