Celotex TB4025 Insulation Board, (L)2400mm (W)1200mm (T)25mm Pack of 1

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£6.78 per M2

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  • Use to insulate walls, floors and roofs
  • Specially designed to eliminate thermal bridges
  • Guarantee

Read moreabout Celotex TB4025 Insulation Board, (L)2400mm (W)1200mm (T)25mm Pack of 1

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Product Details

Technical specifications

Technical specification of Celotex TB4025 Insulation Board, (L)2400mm (W)1200mm (T)25mm Pack of 1
Brand Celotex
Length 2400mm
Width 1200mm
Thickness 25mm
Coverage 2.88m²
Compression strength 120
Rvalue 1.10m²K/W
BBR Green Guide rating A+ (credit awarded)
Euroclass fire performance rating No performance determined (F)
ODP Zero ozone depletion potential
GWP Global warming potential ≤5
Material Foil faced polyisocyanurate (PIR)
Standard BS EN 13165, ISO 9001, ISO 14001
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Help & Advice

Loft Insulation Calculator

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1. Enter the dimensions of the loft space to be insulated in metres:
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This calculation is based on the dimensions you have entered for your loft space, and the current loft insulation thickness.

How to guides

How to insulate your loft

How to insulate your loft

Without proper insulation, as much as 50% of your heating could disappear straight through your walls and roof. And leaking heat means leaking money.

Surprisingly quick and easy to install, loft insulation is one of the most effective step you can take to make your home more energy-efficient and bring down your bills. In fact, if every UK household fitted it to the recommended thickness, it would save enough energy to heat 750,000 homes each year.

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