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: £120.50 (£144.60 inc VAT)
Price per m2: £55.79/m2 (£66.94 inc VAT)
Our ratings on 02-10-2026:
Google My Business Reviews
4.8 out of 5
To GET BEST PRICE for this product only fill below:
Need a quote for more products? and continue browsing to find other materials needed.

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

       

165mm Unilin XT/TF PIR Rigid Insulation Board - Timber Framed Walls - 1200mm x 2400mm 165mm Unilin XT/TF PIR Rigid Insulation Board - Timber Framed Walls - 1200mm x 2400mm
Guide Price
Brand: Unilin (prev. Xtratherm) Model: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
165mm Unilin Thin-r XT/TF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings for use in timber framed walls. Unilin XT/TF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/TF is CFC & HCFC free and is manu..
Guide Price: £67.77
£81.32 inc VAT
37.5mm Unilin XT/TL Thermal Liner Dot and Dab (25mm PIR Insulation bonded to 12.5mm Plasterboard)
Guide Price
Brand: Unilin (prev. Xtratherm) Model: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
37.5mm Unilin XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 25mm Unilin PIR core faced with composite kraft paper bonded to 12.5mm plasterboard, specially designed for internal walls dry lining and insulation, due to its closed cell com..
Guide Price: £44.28
£53.14 inc VAT
59.5mm Unilin XT/TL Thermal Liner Dot and Dab (50mm PIR Insulation bonded to 9.5mm Plasterboard)
Guide Price
Brand: Unilin (prev. Xtratherm) Model: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
59.5mm Unilin XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 50mm Unilin PIR core faced with composite kraft paper bonded to 9.5mm plasterboard, specially designed for internal walls dry lining and insulation, due to its closed cell comp..
Guide Price: £59.23
£71.08 inc VAT
29.5mm Unilin XT/TL Thermal Liner Dot and Dab (20mm PIR Insulation bonded to 9.5mm Plasterboard)
Guide Price
Brand: Unilin (prev. Xtratherm) Model: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
29.5mm Unilin XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 20mm Unilin PIR core faced with composite kraft paper bonded to 9.5mm plasterboard, specially designed for internal walls dry lining and insulation, due to its closed cell comp..
Guide Price: £50.38
£60.46 inc VAT
Brand: Unilin (prev. Xtratherm) Model: 2400mm x 1200mm - 11.52m2
Delivery Time: 7 - 10 days
80mm Unilin Safe-R 019/MA (Floors) is a high‑performance phenolic floor insulation board designed to deliver excellent thermal efficiency with minimal thickness. It is commonly used below screeds, timber floors and concrete slabs where achieving low U‑values is essential without increasing floor bui..
Brand: Unilin (prev. Xtratherm) Model: 1200x600mm - 2.88m2
Delivery Time: 1-3 working days
50mm Unilin Stonewool SW/RS Insulation Slab is a non-combustible Euroclass A1 stone wool insulation used as ventilated rainscreen façade and framing applications and curtain walling. Unilin Stonewool SW/RS insulation provides a uniform, high density solution providing resilience during the buil..
This product is listed in the following categories and systems (click to show).