40mm Celotex TB4000 PIR Insulation Board - TB4040

40mm Celotex TB4000 PIR Insulation Board - TB4040
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40mm Celotex TB4000 PIR Insulation Board - TB4040
Guide Price: £29.38 (£35.26 inc VAT)
Price per m2: £10.20/m2 (£12.24 inc VAT)
  • Product Code: A1-115
  • Delivery Time: 1-3 working days
  • Brand: Celotex (Tech. support: 01473820850)
  • Model: 1200x2400mm - 2.88m2
  • Weight: 4.84kg
Our ratings on 21-10-2026:
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4.8 out of 5

40mm Celotex TB4000 PIR Insulation Board - TB4040

Width: 1200mm
Length: 2400mm
Coverage: 2.88m2
Density: 42kg/m3
Weight/m2: 1.68kg
Weight: 4.84kg
Compressive Strength: 150kPa
Thermal Conductivity: 0.023W/mK
R-Value: 1.8m2K/W

Celotex TB4040 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 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).

Note:

  • Would also be known as TB3040 from January 2018.

APPLICATIONS

  • Pitched Roofs
  • Flat Roofs
  • Solid Masonry Walls
  • Timber Framed & Steel Framed Systems
  • Floors
CHARACTERISTICS
  • Specifically designed to eliminate thermal bridges
  • The thinnest PIR insulation
  • Standard board size of 1200mm x 2400mm
  • Easy to cut and shape
  • Low emissivity foil facings giving improved thermal insulation
  • High performance within cavity air spaces
  • Long-term energy savings for buildings
CERTIFICATION
  • CE marking compliance to BS EN 13165
  • Manufactured in accordance with quality management system ISO 9001 and environmental management system ISO 14001
  • Achieves an A+ rating when compared to the BRE Green Guide 2008
85mm Celotex CW4085 - Rigid PIR Cavity Insulation Board (pack of 7) CW4000
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Delivery Time: 1 - 5 working days
85mm Celotex CW4085 - Rigid PIR Cavity Insulation Board (pack of 7) CW4000
85mm 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 rigid pol..
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40mm Celotex TB4000 PIR Insulation Board - TB4040
Guide Price
Brand: Celotex Model: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
40mm Celotex TB4000 PIR Insulation Board - TB4040
Celotex TB4040 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..
Guide Price: £29.38
£35.26 inc VAT
45mm Celotex TB4000 PIR Insulation Board - TB4045
Brand: Celotex Model: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
45mm Celotex TB4000 PIR Insulation Board - TB4045
Celotex TB4045 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..
35mm Celotex TB4000 PIR Insulation Board - TB4035
Guide Price
Brand: Celotex Model: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
35mm Celotex TB4000 PIR Insulation Board - TB4035
Celotex TB4035 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..
Guide Price: £81.95
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80mm Celotex CW4000 Rigid PIR Cavity Insulation Board (pack of 6)
Brand: Celotex Model: 1200mm x 450mm - 3.24m2
Delivery Time: Discontinued
80mm Celotex CW4000 Rigid PIR Cavity Insulation Board (pack of 6)
80mm 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 rigid pol..
37.5mm Celotex PL4025 - 25mm PIR Insulation Bonded to 12.5mm Plasterboard (PL4000) 37.5mm Celotex PL4025 - 25mm PIR Insulation Bonded to 12.5mm Plasterboard (PL4000)
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Brand: Celotex Model: 1200x2400mm - 2.88m2
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Celotex PL4025 is a high performance thermal insulation board where the 25mm PIR insulation is bonded to 12.5mm tapered edge plasterboard. PL4000 range is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global..
Guide Price: £53.06
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