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125mm Unilin Thin-R CT/PIR CavityTherm Full Fill Insulation (pack of 4)

125mm Unilin Thin-R CT/PIR CavityTherm Full Fill Insulation (pack of 4)
125mm Unilin Thin-R CT/PIR CavityTherm Full Fill Insulation (pack of 4)
Guide Price
125mm Unilin Thin-R CT/PIR CavityTherm Full Fill Insulation (pack of 4)
125mm Unilin Thin-R CT/PIR CavityTherm Full Fill Insulation (pack of 4)
125mm Unilin Thin-R CT/PIR CavityTherm Full Fill Insulation (pack of 4)
Guide Price: £115.64 (£138.77 inc VAT)
Price per m2: £53.54/m2 (£64.24 inc VAT)
  • Product Code: A1-4931
  • Delivery Time: 1-3 working days
  • Brand: Unilin (prev. Xtratherm)
  • Model and Size: 1200mm x 450mm - 2.16m2
  • Weight: 8.10kg
Our ratings on 09-10-2025:
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125mm Unilin Thin-R CT/PIR CavityTherm Full Fill Insulation (pack of 4)

Length: 1200mm
Width: 450mm
Thickness: 120mm
Pack Quantity: 4
Board Coverage: 0.54m2
Pack Coverage: 2.16m2
Density: 30kg/m3
Weight/m2: 3.6kg
Weight: 8.1kg
Thermal Conductivity: 0.021W/mK
R-Value: 5.7m2K/W
Compressive Strength: 100kPa

125mm Unilin CavityTherm wall insulation board is a high performance composite board of enhanced PIR core with a lambda value of 0.021W/mK. The boards have gas tight facings with one face bonded to a profiled HIPS skin during manufacture to provide a drainage plane. Unilin CavityTherm's unique engineered profiled facing directs any moisture might penetrate the external wall down the protective facing and back onto the external leaf, giving added protection from wind  driven rain. Unilin CavityTherm board includes specifically designed rebated edge detailing on all four edges to allow the system to tightly interlock when installed. This engineered jointing of the insulation layer ensures continuity and results in excellent thermal bridging detailing.

CavityTherm built into a traditional 100-150mm cavity using traditional foundation, building skills and materials achieves U-values down to 0.12W/m2K. A practical, affordable solution to low energy design, that results in traditional, desirable homes.

Note: This product was formerly known as 125mm Thin-R CT/PIR Cavity Therm Full Fill Insulation Xtratherm

APPLICATION
  • Full fill cavity wall insulation

CHARACTERISTICS
  • High Thermal Performance Rigid Insulation
  • Easy to install
  • Non-deleterious material
  • Suitable for new build and refurbishment
  • Robust engineered jointing detail
  • Avoids potential defaults factor for heat loss at joints
  • Reduces thermal bridging
  • Ancillary detailing products available
  • Closed cell structure-moisture resistant
CERTIFICATION

       

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