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45mm Celotex TB4000 PIR Insulation Board - TB4045

45mm Celotex TB4000 PIR Insulation Board - TB4045
  • Product Code: A1-116
  • Delivery Time: 1-3 working days
  • Brand: Celotex (Tech. support: 01473820850)
  • Model: 1200x2400mm - 2.88m2
  • Weight: 5.44kg
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Our ratings on 16-07-2026:
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4.8 out of 5

45mm Celotex TB4000 PIR Insulation Board - TB4045

Width: 1200mm
Length: 2400mm
Coverage: 2.88m2
Density: 42kg/m3
Weight/m2: 1.89kg
Weight: 5.44kg
Compressive Strength: 120kPa
Thermal Conductivity: 0.023W/mK
R-Value: 2m2K/W

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 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 TB3045 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
60mm Celotex GA4000 PIR Insulation Board - GA4060
Guide Price
Brand: Celotex Model: 2400x1200mm - 2.88m2
Delivery Time: 1-3 working days
60mm Celotex GA4060 is a multi-purpose insulation board that provides a solution to overcome localized thermal bridges. Featuring a low emissivity foil facings, this board has been manufactured from tough polyisocyanurate (PIR) using a perfect mix of certain blowing agents which have zero ozone depl..
Guide Price: £31.06
£37.27 inc VAT
140mm Celotex Thermaclass Cavity Wall 21 - Rigid PIR Full Fill Cavity Insulation Board (pack of 4)
Guide Price
Brand: Celotex Model: 1190x450mm - 2.16m2
Delivery Time: up to 7 days
140mm 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: £136.44
£163.73 inc VAT
75mm Celotex CW4075 - Rigid PIR Cavity Insulation Board (pack of 8) CW4000
Guide Price
Brand: Celotex Model: 1200mm x 450mm - 4.32m2
Delivery Time: 1 - 5 working days
75mm 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..
Guide Price: £69.95
£83.94 inc VAT
30mm Celotex TB4000 PIR Insulation Board - TB4030
Guide Price
Brand: Celotex Model: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
Celotex TB4030 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: £24.47
£29.36 inc VAT
50mm Celotex GA4000 PIR Insulation Board - GA4050
Guide Price
Brand: Celotex Model: 2400x1200mm - 2.88m2
Delivery Time: 1-3 working days
50mm Celotex GA4050 is a multi-purpose insulation board that provides a solution to overcome localized thermal bridges. Featuring a low emissivity foil facings, this board has been manufactured from tough polyisocyanurate (PIR) using a perfect mix of certain blowing agents which have zero ozone depl..
Guide Price: £27.76
£33.31 inc VAT
100mm Celotex CW4100 - Rigid PIR Cavity Insulation Board (pack of 6) CW4000
Guide Price
Brand: Celotex Model: 1200mm x 450mm - 3.24m2
Delivery Time: 2 - 3 working days
100mm 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 rig..
Guide Price: £68.22
£81.86 inc VAT

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