35mm Celotex TB4000 PIR Insulation Board - TB4035

Guide Price
35mm Celotex TB4000 PIR Insulation Board - TB4035
Guide Price: £46.55 (£55.86 inc VAT)
Price per m2: £16.16/m2 (£19.40 inc VAT)
5 or more £46.18 (£55.42 inc VAT)
10 or more £45.76 (£54.91 inc VAT)
20 or more £45.36 (£54.43 inc VAT)
- Product Code: A1-114
- Delivery Time: 1-3 working days
- Brand: Celotex (Tech. support: 01473820850)
- Model and Size: 1200x2400mm - 2.88m2
- Weight: 4.23kg
Our ratings on 17-04-2025:

4.7 out of 5 - Excellent


4.8 out of 5
35mm Celotex TB4000 PIR Insulation Board - TB4035
Width: 1200mm
Length: 2400mm
Coverage: 2.88m2
Density: 42kg/m3
Weight/m2: 1.47kg
Weight: 4.23kg
Thermal Conductivity: 0.023W/mK
R-Value: 1.55m2K/W
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 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 TB3035 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
Brand: Unilin (prev. Xtratherm)
Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
35mm Unilin Thin-r XT/PR-UF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. Unilin XT/PR-UF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/PR-UF is CFC & HCFC free and is manufactured under the high..
Guide Price: £22.37
£26.84 inc VAT
Brand: Celotex
Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
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: £46.55
£55.86 inc VAT
Brand: Celotex
Model and Size: FF4000 1200x2400 - 69.12m2
Delivery Time: 3 - 5 days
50mm Celotex FF4000 Underfloor Heating Board (pack of 24)
Size: 1200mm x 2400mm
Area per pack: 69.12m2
Thermal conductivity: 0.022 W/Mk
R-Value: 2.25m2K/W
Compressive strength: ≥150kPa
Water vapour resistance: >150 MNs/g
Weight: 1.81kg/m2
Celotex FF..
Brand: Celotex
Model and Size: 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..
£51.25
£61.50 inc VAT
Brand: Celotex
Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
Celotex TB4012 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..
Brand: Celotex
Model and Size: 1200mm x 450mm - 7.56m2
Delivery Time: 1 - 5 working days
40mm 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..
Guide Price: £58.29
£69.95 inc VAT
Brand: Celotex
Model and Size: FF4000 1200x2400 - 51.84m2
Delivery Time: 3 - 5 days
125mm Celotex FF4000 Underfloor Heating Board (pack of 9) | FF 4125
Size: 1200mm x 2400mm
Area per pack: 25.92m2
Thermal conductivity: 0.022 W/Mk
R-Value: 5.65m2K/W
Compressive strength: ≥150kPa
Water vapour resistance: >150 MNs/g
Weight: 4.21kg/m2
&..